Curated OER
Trigonometric Ratios
In this trigonometric ratios worksheet, 10th graders solve 9 different problems that include determining the trigonometric ratios of each triangle. First, they determine the sides and angles of a right triangle that is shown in each...
Curated OER
Pythagorean Identities
In this Pythagorean identities activity, 11th graders solve 10 different problems that include applying various Pythagorean identities in each. First, they determine the values of tangent, secant, cosecant, and cosine given the other...
Curated OER
Differentiation Rules for Math 21A and Trig Identities
In this math worksheet, students read the rules for differentiation and the trigonometry identities. They could apply each one to practice problems.
Virginia Department of Education
Special Right Triangles and Right Triangle Trigonometry
Right triangles are so special! Use special right triangles to discover the trigonometric ratios. Pairs construct special right triangles and find the values of the ratios of the sides. In the process, they discover the ratios stay the...
Curated OER
Exploring Trigonometric Ratios
Learners identify the ratios of trig functions. In this trigonometry lesson, students construct triangles and use it to derive the values of sine, cosine and tangent. They use Cabri software to create the visual of the identities.
Curated OER
Trigonometry Review
In this trigonometry instructional activity, learners solve trigonometric equations, prove trigonometric identities, and graph trigonometric functions. The four page instructional activity contains sixteen questions. Answers are not...
Curated OER
Year 10 Trigonometry
In this math worksheet, students complete the graphic organizers while filling in the missing values by using the trigonometric ratios.
Curated OER
Trig Card Game (Review of Trig Identities)
In this trig card game, students play a card game to form and identify trigonometric identities. Students collect cards to form identities. This one-page instructional activity contains instructions for making cards and the rules of...
Curated OER
Trigonometric Expressions and Identities
For this college level Pre-calculus worksheet, students use the trigonometric identities to factor and simplify trigonometric expressions. Students use algebra to prove various trigonometric identities. The three page worksheet...
Curated OER
Trigonometry Ratios in Right Triangles
In this trigonometry ratios in right triangles worksheet, 10th graders solve 6 different right triangle problems. First, they find the values of x and y in each triangle, rounding each to the nearest tenth. Then, students locate the...
Curated OER
Connect The Dots Trig. Identities
In this trig. identities worksheet, learners connect the dots to equivalent values. Then students find the isosceles right triangle formed. Solutions are provided.
Curated OER
Easy Worksheet: Trigonometry
For this trigonometry worksheet, students solve 4 short answer problems. Students find the secant, cosine, or tangent of the given angle shown in the diagram.
Curated OER
Trigonometry Ratios
Students identify the different angles and sides of a triangle. In this geometry instructional activity, students identify the six trigonometric ratios. They graph the graph of each trig function and analyze it.
Curated OER
Further Trigonometry
For this trigonometry worksheet, students solve and complete 5 various types of problems. First, they find the exact ratios for each trigonometric function. Then, students use the expansion to find the exact value of a given trig...
Curated OER
Finding Trigonometric Ratios
In this finding trigonometric ratios worksheet, 11th graders solve and complete 22 various types of problems. First, they find the value of each trigonometric ratio to the nearest ten-thousandth. Then, students use a calculator to find...
Curated OER
Trigonometry Practice
In this trig worksheet, students draw graphs of trig functions and identify the cycle of the function. They discuss period and phase shift. There are 9 questions with an answer key.
EngageNY
Using Trigonometry to Find Side Lengths of an Acute Triangle
Not all triangles are right! Pupils learn to tackle non-right triangles using the Law of Sines and Law of Cosines. After using the two laws, they then apply them to word problems.
EngageNY
From Circle-ometry to Trigonometry
Can you use triangles to create a circle? Learners develop the unit circle using right triangle trigonometry. They then use the unit circle to evaluate common sine and cosine values.
Flipped Math
Trig Ratios
Take ratios of sides to a new level. Pupils learn the definitions of the three basic trigonometric ratios in right triangles. Using the definitions, scholars find missing lengths in right triangles, based on a known angle. Individuals...
Illustrative Mathematics
Finding Trig Values
Let's keep trigonometry simple. When given a cosine ratio, learners must use the clues about the quadrant to determine the sine and tangent ratios. The answer key has a complete worked-out solution to help guide pupils through the problem.
Curated OER
Trigonometric Identities
In this trigonometry worksheet, students derive the 6 different trigonometric identities. They use the identities to solve problems by multiplication of trig ratios. There are 102 trig questions to be solved.
Curated OER
Some More Trigonometry
Students define the law of cosine and its correct usage. In this trigonometry lesson, students define the law of Heron's area formula and use it to solve problems. They review other trigonometric values and identify the identities.
Curated OER
Trigonometry Puzzle
In this trigonometry worksheet, students solve for the degree or the ratio in 48 questions using the 6 basic trigonometric functions.
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...