Mathed Up!
Sine and Cosine Rules and Area of Triangles
Learners discover how to find missing sides and angles using trigonometry. Scholars first watch a video covering the Law of Sines and Cosines, as well as the area formula for a triangle. To test their knowledge, they complete a learning...
Illustrative Mathematics
Calculations with Sine and Cosine
Practice makes perfect and perfecting those trigonometric functions are vital in trigonometry. The task requires evaluating cosine and sine values at common degree measures before looking at the results. Is there a pattern when the...
Curated OER
Law of Sines and Law of Cosines
In this sine and cosine worksheet, students use the law of sines and law of cosines to find the required part of a triangle. Examples and explanations are provided. This three-page worksheet contains 24 problems. Answers are listed at...
Curated OER
Using a Calculator (Sine, Cosine, Tangent)
In this calculator instructional activity, students use a calculator to solve given trigonometric ratios. They determine the sine, cosine and tangent of expressions. This one-page instructional activity contains ten problems.
Mt. San Antonio Collage
Graphing Trigonometric Functions
Double win with a comprehensive worksheet and an excellent worked out answer key. The worksheet itself is twelve pages and begins with the simple sine and cosine graphs, then, develops into the reciprocal trig functions.
Curated OER
Using the Law of Sines and the Law of Cosines to Solve Triangles
In this trigonometry worksheet, students apply the Law of Sines and Cosines to solving for missing sides of a triangle. There are 5 questions with an answer key.
Curated OER
Pre-Calculus Test Chapter 5: Identities
In this identities worksheet, learners match equivalent expressions containing sine, cosine, and tangent. They solve equations, find intervals, and determine all solutions to an interval. Students prove given identities. This...
Curated OER
Precalculus Test Sections 5.1 - 5.2
In this section worksheet, students simplify given addition and division problems containing ratios with sine, cosine, and tangent. They factor problems and prove identities. This two-page worksheet contains 12 problems.
Curated OER
Using Trinonometry to Find Angle Measures
In this trigonometric ratios worksheet, students find the missing angle of 20 triangles by using sine, cosine and tangent ratios. Students compute the angle measurement of given ratios for six problems.
Curated OER
Trigonometry Formula Worksheet
In this trigonometry worksheet, learners solve right triangle problems. They find the sine, cosine and tangent of given triangles. This on-line, interactive worksheet contains 6 problems. Answers are provided.
National Council of Teachers of Mathematics
Improving Archimedes' Method
For this Archmides' method instructional activity, high schoolers determine the area of a regular n-gon inscribed in a circle. They use sine and cosine functions to solve problems. This three-page instructional activity contains 4...
Curated OER
Sine Cosine Game
In this algebra activity, students are given a word problem they must solve by rewriting the words in to algebraic symbols. They investigate Sine and Cosine using word problems. There are 18 questions with an answer key.
Curated OER
Trigonometry Ratios in Right Triangles
In this trigonometry ratios in right triangles worksheet, 10th graders solve 10 different trigonometric ratios that apply to right triangles. First, they define a trigonometric ratio and its three most common ratios, sine, cosine, and...
Curated OER
Worksheet 6.7 MT-A141 PreCalculus
In this PreCalculus worksheet, students explore inverse relations of sine, cosine, and tangent. They graph three functions and describe the inverse function.
Curated OER
Angle Sum and Difference
In this angle sum and difference activity, 11th graders solve 10 different problems related to determining the angle sum and difference of numbers. First, they determine the exact value of sine and cosine degrees. Then, students utilize...
Curated OER
Trig Twisters
In this trig learning exercise, students use the law of sines, cosine, and tangent to solve problems. They work with a partner to find the measurement of angles to the nearest degree and the product of sines. This two-page learning...
Curated OER
Review 13.1-13.2: Unit Circle
In this unit circle worksheet, learners find the sine, cosine, tangent, cotangent, and co-secant of given values. They determine the exact value of trigonometric ratios. Students convert from degrees to radians. This two-page worksheet...
Curated OER
MT-A141 PreCalculus: Worksheet 6.5/6.6
For this precalculus worksheet, students investigate functions and determine which functions are sinusoids. They estimate the amplitude, phase shift, and period of each function. Students explore the sums of sine and cosine functions....
Curated OER
Areas Between the Curves
In this algebra worksheet, students solve and complete 12 problems involving sine, cosine, area and function.
Curated OER
Quadrantal Angles
In this quadrantal angle worksheet, learners determine the six trigonometric for each quadrant angle. This one-page worksheet contains 36 problems, with answers printed at the bottom of the page.
Curated OER
Pre-Calculus Sudoku Puzzle
In this pre-calculus instructional activity, student solve 35 multiple choice problems and then place the answers in a Sudoku puzzle form. This instructional activity would be a great warm up or fun test review.
Curated OER
Trig Ratios of General Angles
In this trig ratios instructional activity, students determine the angle measurement of trigonometric ratios. They find the value of trigonometric function. This approximately four-page instructional activity contains 24 problems....
Curated OER
Trigonometry
In this right triangles worksheet, students use trigonometric ratios to determine the length of a side of a triangle or a missing angle measurement. This two-page worksheet contains 20 problems.
Curated OER
Trigonometry: Labeling, Formulas, Solving
In this math activity, students label sides of right triangles as opposite, hypotenuse, and adjacent to the labeled angle. On the second page of the activity, students label the part of the right triangle marked with a question mark and...