Similar Right Triangles Teacher Resources

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In this geometry worksheet, students examine similar right triangles as the basis for the foundation of trigonometry. Students define the basic trigonometric functions and use a calculator to find the trigonometric value of an angle. The four page worksheet contains forty-six problems. Answers are not included.
Participants who use this resource will apply the Pythagorean Theorem to show whether or not the shaded triangle inscribed in a rectangle is a right triangle. Once all of the sides on the shaded triangle are found, it is important that your class understands that the largest side may be the hypotenuse. From there, it is easy to apply the Pythagorean Theorem to solution II of the commentary.
Students investigate right triangles using the six trigonometric identities. In this geometry lesson, students examine why the altitude in a right triangle creates two or more right triangles.
49Students investigate the properties of right triangles. For this geometry lesson, students differentiate between similar and congruent triangles. They use the Pythagorean Theorem to find the missing angles and sides.
Students solve problems using concepts of the right triangle. In this geometry lesson, students solve different parts of a right triangle using the pythagorean theorem. They calculate the values for sine, cosine and tangent.
In this right triangles worksheet, students fill out a chart for right triangles in sine, cosine, and tangent and complete word problems. Students complete 5 problems total.
Students review the relationship between the area of a right triangle and the area of a cooresponding rectangle. Using new terminology, they identify the characteristics of right triangles. In groups, they review geometric concepts associated with parallelograms and experiment with pattern making.
Eighth graders investigate direct and indirect measurement.  In this eighth grade geometry and measurement lesson, 8th graders investigate a variety of methods for measuring the height of a tree.  Students investigate and use the properties of similar triangles and special right triangles to solve application problems. 
As an introduction to the lesson, learners verify the Pythagorean theorem with a hands-on proof. Then, pupils use the theorem to determine whether three side lengths could form a right triangle and choose one of two real-life situations to examine using the theorem. Terrific activities and worksheets are embedded.
In this geometry review instructional activity, 10th graders solve and complete 100 various types of problems studied in geometry. First, they find the slope-intercept form of a line passing through two points and parallel to a given line. They also find the length of the leg of a right triangle. in addition, they determine the area of a given quadrilateral.
Students identify similar and congruent right triangles. In this geometry lesson, students use trigonometric ratios to identify missing sides and angles of a triangle. They differentiate similar and congruent triangles.
Students explore the concept of right triangles. In this right triangle lesson, students construct a scale model of a tourist attraction similar to Fort Jefferson. Students research aerial photos of Fort Jefferson, then build their model using posterboard, markers, tape, scissors, rulers, and other items.
Using a twelve foot knotted rope, students form a 3-4-5 right triangle. Following a discussion of observations about the lengths of the sides of the triangle, students use grid paper, scissors and a centimeter ruler to draw and measure sides of more right triangles.
Students apply the different theorems of a triangle as they define similarity of shapes. In this geometry lesson, students solve problems involving right triangles. They compare the triangles using ration and proportions as they relate to the Pythagorean Theorem.
Students solve problems of a right triangle using properties of trigonometry. In this geometry lesson, students apply properties of a right triangle to solve problems correctly.
Students calculate different parts of a right triangle. In this algebra lesson, students use the Pythagorean Theorem and the similarity and congruent theorems to solve triangular problems.
How do you measure the height of really tall building? Using similar triangles, and proportions, young geometers try to determine the height of a nearby building. Then they explore the concept of a geometric mean and how it relates to their measurements. 
In this right triangle worksheet, students determine the similarity of given worksheets. They find the length of one side of a triangle. This one-page worksheet contains 19 multi-step problems.
Students use Geometric Sketchpad to describe properties of special right triangles. In this right triangles lesson plan, students complete worksheets provided.
Students solve problems with similarity and ratios. For this triangle lesson, students use individual response pads to answer questions about ratio and proportion as it relates to triangles. They identify the geometric mean of each triangle.

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Similar Right Triangles