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\n\"Geometry\n\n
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\nLesson Planet Curated\n
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\nGeometry Unit 9: Area of Polygons\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nSix lessons make up the Geometry Unit 9: Area of Polygons unit module. Pupils review the formulas for finding the area of parallelograms and triangles. They apply previous learning of trigonometric ratios and the Pythagorean Theorem to...\n
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\nSpecial Right Triangles Homework\n

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\n\nFor Students\n\n9th - 12th\n
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\nIn this geometry learning exercise, learners solve both kinds of special right triangles. There are 12 questions with multiple parts.\n
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Instructional Video10:02
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\n\"Special\n\n
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\nSpecial Right Triangles II\n

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\n\nFor Students\n\n9th - 12th\n
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\nShow students that right triangles are radical. Learners see how the lengths of the sides of a 45-45-90 triangle relate. Using that relationship, pupils observe how to find any of the lengths given one side of a triangle. They go on to...\n
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\n\"Applying\n\n
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\nCurated OER\n
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\nApplying Special Right Triangles\n

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\n\nFor Teachers\n\n10th\n
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\nIn this geometry worksheet, 10th graders use the theorems regarding right triangles to find the missing length in a special right triangle. The one page worksheet contains eleven questions. Answers are included. \n
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Instructional Video20:12
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\n\"Special\n\n
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\nSpecial Right Triangles I\n

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\n\nFor Students\n\n9th - 12th\n
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\nIntroduce a special relationship with right triangles. Learners discover the ratio of the sides in a 30-60-90 triangle. After watching several examples and seeing two different methods, pupils find unknown sides in triangles. Scholars...\n
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Lesson Plan
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\n\"Special\n\n
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\nCurated OER\n
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\nSpecial Right Triangles\n

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\n\nFor Teachers\n\n10th - 12th\n
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\nFor this special right triangle worksheet, students use the trigonometric functions to determine angle measurement or the length of one side of a right triangle. This one-page worksheet contains 18 problems. Answers are provided at the...\n
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Unit Plan
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\n\"Module\n\n
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\nMathematics Vision Project\n
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\nModule 7: Modeling with Geometry\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nModel good modeling practices. Young mathematicians first learn about cross sections and solids of revolution. They then turn their attention to special right triangles and to the Laws of Sine and Cosine. \n
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Handout
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\n\"Trigonometry\n\n
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\nTrigonometry Review Sheet\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nGet the trig facts fast, and use the review sheet as a guide in the classroom. The worksheet also includes a document version if any changes are needed to the problems. The information includes a small degree/radian chart, a graph of all...\n
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Instructional Video7:06
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\n\"Unit\n\n
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\nUnit 7 Review: Right Triangles\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nIt is all right to spend some time with a review. After watching a short review video covering the materials from the unit, pupils work through 23 review problems. Scholars work on problems involving the Pythagorean Theorem and its...\n
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Instructional Video25:49
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\nUnit Circle and Radians\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nMeasure angles is easy as pi. Pupils review special right triangles to find exact values for trigonometric functions. Scholars learn about radians and how they connect to measurements in degrees. They find exact and approximate values of...\n
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\nBeen Caught Stealing\n

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\n\nFor Teachers\n\n6th - 8th\n\nStandards\n
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\nYou're safe, when calculating the odds of stealing second base! Learners compare the rate of a runner to the distance the ball travels, in a lesson plan that explores right triangles and measurement. Full of discussion questions and...\n
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\n\"Special\n\n
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\nSpecial Right Triangles\n

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\n\nFor Students\n\n9th - 12th\n
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\nIn this special right triangles activity, students solve 15 short answer problems. Students use trigonometric functions to find missing side lengths of various right triangles.\n
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\nCurated OER\n
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\nPractice: Word Problems\n

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\n\nFor Students\n\n5th - 7th\n\nStandards\n
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\nCongratulations, you've just hit the word problem jackpot! Covering an incredible range of topics from integers and fractions, to percents, geometry, and much more, this collection of worksheets will keep young mathematicians...\n
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Worksheet
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\nSpecial Right Triangles\n

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\n\nFor Students\n\n10th\n
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\nFor this special right triangles worksheet, 10th graders solve 7 various problems with various types of right triangles. First, they identify the two special types of right triangles, the 45-45-90 degree triangle and the 30-60-90 right...\n
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\nSpecial Right Triangles\n

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\n\nFor Students\n\n10th\n
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\nIn this special right triangles worksheet, 10th graders solve 9 different problems related to measuring various types of right triangles. First, they find the values of x and y in each right triangle shown. Then, students find the length...\n
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\n\"Special\n\n
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\nSpecial Right Triangles\n

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\n\nFor Teachers\n\n9th - 10th\n
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\nStudents identify different types of special right triangles. In this geometry lesson, students differentiate between right triangles and isosceles triangles. they construct the triangles using geometry software and make conjectures...\n
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Worksheet
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\nSpecial Right Triangles\n

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\n\nFor Students\n\n10th\n
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\nIn this special right triangles worksheet, 10th graders solve 10 different problems that include solving equations that are special right triangles. First, they determine the exact value of each problem. Then, students use the...\n
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Interactive
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\nSpecial Right Triangles Multiple Choice\n

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\n\nFor Students\n\n9th - 11th\n
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\nIn this length worksheet, students answer five multiple choice questions concerning lengths using rules of various figures including, triangles, rhombus, diamonds, and circles.\n
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Instructional Video20:13
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\nRegular Polygons\n

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\n\nFor Students\n\n9th - 12th\n
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\nMake area a regular affair. By dividing a regular polygon into triangles, pupils see how the area formula works. Learners watch several examples of finding the area of various regular polygons before practicing how to find the area of...\n
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Instructional Video16:02
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\nUnit 9 Review: Area of Polygons\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nIt's time to show what you know! Individuals first review finding the area of polygons using the formulas from parallelograms to regular polygons. They then brush up on finding the area and circumference of circles, as well as reviewing...\n
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\nSpecial Right Triangles\n

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\n\nFor Students\n\n10th\n
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\nIn this right triangles learning exercise, 10th graders solve and complete 16 various types of problems. First, they find the missing side lengths in each illustration shown. Then, students place the letter of each problem on the lines...\n
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\n\"30-60-90\n\n
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\n30-60-90 Right Triangles in Cabri Jr.\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nYoung mathematicians draw and label right triangles using Cabri Jr. technology. They create other special right triangles and identify the length of the hypotenuse and each leg. Learners explore the ratios to determine how the hypotenuse...\n
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\n\"Solve\n\n
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\nSolve Right Triangle\n

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\n\nFor Teachers\n\n9th - 11th\n
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\nIn this trigonometric applications worksheet, students solve for the missing side of a right triangle using a trigonometric ratio. There are 46 questions, 10 of which are word problems.\n
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\n\"Geometry,\n\n
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\nGeometry, Measurement & Reasoning\n

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\n\nFor Teachers\n\n7th - 9th\n
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\nStudents measure prisms and determine their volume. In this measurement and reasoning instructional activity, students estimate the volume and area of prisms. They measure given boxes. Students use paper to create prisms and cylinders....\n
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