Angle Teacher Resources
Find Angle lesson plans and worksheets
Showing 49 - 72 of 523 resources
Exploration of TrigonometryLesson Planet
6th - 12th CCSS: Designed
Learners explore how changing an angle in a triangle changes the ratio of the sides. They also explore how changing the sides can make changes to an angle in a triangle. Finally, they determine how two different pairs of sides, in the...
Angles of Elevation and Depression: Fly-By CalibrationLesson Planet
9th - 12th CCSS: Designed
Determine the distance between two trees from afar. Pupils use an interactive resource to create two right triangles using trees and a plane. They determine the horizontal legs of each triangle to find the distance between the two trees.
The unit circle definition of trigonometric functionLesson Planet
9 mins 10th - 12th
In this video, Sal shows how the sine and cosine of an angle are defined on the unit circle. He inscribes a 30-60-90 triangle in the unit circle and explains how one can use SOH-CAH-TOA to find the coordinates on the circle.
Applications of Trigonometric FunctionsLesson Planet
10th - 12th CCSS: Adaptable
Using trigonometric ratios to solve geometry and application problems is the focus of this detailed problem set and solution presentation. The presentation covers many ways to use trigonometry, from finding missing measures in right...
Trigonometry IntroductionLesson Planet
3 mins 10th - 12th CCSS: Adaptable
Don't go off on a tangent. An instructive video describes how to find the sine, cosine, and tangent ratios of an angle in a right angle. It describes how to label the sides of a right triangle and how to use mnemonics to remember the...
Similar Right Triangles-Introductions to TrigonometryLesson Planet
9th - 10th
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...
Final Exam Review: Angles & Trig FunctionsLesson Planet
10th - Higher Ed
In this trigonometry function worksheet, students review the law of sines and cosines. They find exact trig function values for angles, determines amplitude, period and phase shift of a graph, and add ordinates. This final review...
Math Honors 2: Trigonometry Review QuestionsLesson Planet
11th - 12th
In this Algebra II/Trigonometry activity, students solve problems involving angle of depression or elevation, evaluate trigonometric expressions, solve trigonometric equations, and graph trigonometric functions. The one page activity...
Trigonometry Involving Figures - Week 11Lesson Planet
10th - 11th
In this trigonometry worksheet, students use trigonometric functions to determine the measurement of angles and the length of sides in given figures. Most figures are comprised of rectangles containing parallel and perpendicular lines,...
How Do You Find the Cosine of an Angle in a Right Triangle?Lesson Planet
3 mins 7th - 11th
What's a trigonometric ratio? It is a ratio between two sides of a right triangle. In this problem, find cosine(A) in the given right triangle. Use the ratio of the adjacent side divided by the hypotenuse to find cos(A). The instructor...
How Do You Find the Tangent of an Angle in a Right Triangle?Lesson Planet
3 mins 6th - 11th
What's a trigonometric ratio? It is a ratio between two sides of a right triangle. In this problem, find tangent(A) in the given right triangle. Use the ratio of the opposite side divided by the adjacent side to find tan(A). The...