Curated OER
Right Triangles and The Unit Circle
Students solve right triangles using trigonometry. In this geometry lesson, students use the unit circle to identify different trig values. They identify the six trigonometric identities.
Curated OER
Right Triangles and The Pythagorean Theorem
Students play a game to reinforce concepts of the Pythagorean Theorem. In this geometry instructional activity, students find the missing angle and lengths of a right triangle. They use properties of trigonometry about sine, cosine and...
Curated OER
Sixteen Angle Pre-calculus Trig Problems
In this angle worksheet, students solve ten multiple choice and six free response questions. These precalculus questions cover angles, radians, and right triangles.
Curated OER
Using Slope Angles
In this geometry worksheet, 10th graders use right triangle trigonometry to solve problems involving angle of elevation or depression. The one page worksheet contains eleven problems. Answers are not provided.
Curated OER
Geometry Worksheet: Pythagoras' Theorem
In this Pythagorean Theorem worksheet, students use the Pythagorean Theorem to find the length of the unlabeled side of the right triangle. There are 8 problems all together.
Curated OER
Geometry Problem
For this geometry worksheet, 10th graders analyze an equilateral triangle which is divided into right triangles and determine missing lengths. The one page worksheet contains one problem. Answer is provided.
Curated OER
Tangrams
In this tangram worksheet, students form a square using tangrams. Afterwards, they form additional shapes with tangrams. This one-page worksheet contains 180 tangram shapes for students to create by placing tangram...
Curated OER
Find the Missing Side of the Right Triangle
In this find the missing side of the right triangle worksheet, students use the Pythagorean theorem to find the missing side, given the other 2 lengths, for 4 triangles.
Curated OER
The Law of Cosines
In this Law of Cosines learning exercise, students are asked to demonstrate the ability to apply the Trigonometric Law of Cosines and the Inverse Law of Cosines to solve for sides and angles of right triangles.
Curated OER
Inverse Functions in Trigonometry
In this inverse functions in trigonometry worksheet, students find the missing angles in eight right triangles, given the length of two sides.
Curated OER
Using the Pythagorean Theorem
In this using the Pythagorean Theorem worksheet, students use the Pythagorean Theorem to find the missing information for ten right triangles.
Curated OER
Altitude Locator
Students use protractors, strings, and straws to construct a device used to determine the height of tall objects. In this applied geometry instructional activity, students use common objects to construct a tangent height guide. They use...
Curated OER
Roll It! Creating an Entrance Ramp
High schoolers explore the concept of triangles. In this triangles lesson, students are to propose a plan for a ramp at their school. High schoolers use the Pythagorean Theorem and trigonometry to determine the length,...
Curated OER
Identifying Triangles
In this triangles practice learning exercise, students respond to 4 questions that require them to identify the pictured triangles as acute, right, obtuse, scalene, isosceles, or equilateral triangles.
Curated OER
Identifying Triangles
In this triangles practice learning exercise, students respond to 4 questions that require them to identify the pictured triangles as acute, right, or obtuse triangles.
Curated OER
Triangles
Students draw triangles. In this shapes lesson, students discuss what they already know about triangles, what they are and what they are made up of. Students discuss the types of triangles and practice drawing each type.
Curated OER
Designing a Fort
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...
Curated OER
Right Triangle
In this right triangle instructional activity, students find the length of sides of a right triangle. This one-page instructional activity contains 1 problem.
Curated OER
Right Triangle
In this right triangle learning exercise, students find the lengths of the sides of a triangle. This one-page learning exercise contains 1 problem.
Curated OER
Right Triangles
In this right triangles worksheet, 10th graders solve and complete 12 different types of problems. First, they solve for a variable given each of the right triangles with the sides as indicated. Then, students determine the shorter...
Curated OER
Pythagorean Theorem Worksheet
In this Pythagorean theorem activity, students solve 24 problems in which they find the missing side of a ride triangle given the length of 2 sides.
Curated OER
The Pythagorean Theorem
In this Pythagorean theorem worksheet, 9th graders solve and complete 8 different problems that include using the Pythagorean theorem to solve. First, they find the missing measure in each right triangle. Then, students make a drawing...
Curated OER
The Pythagorean Theorem
In this Pythagorean theorem activity, 9th graders solve and complete 16 different problems that include using the Pythagorean theorem to solve each one. First, they find each missing measure given the hypotenuse of a right triangle....
Curated OER
Mean Twisters - Mean Proportional
In this mean proportional instructional activity, students work in pairs to solve right triangle problems. They use ratios and proportions of similar triangles to determine a missing length. This two-page instructional activity...