In this angles activity, students find the measurement of missing angles.  They identify complimentary, supplementary and vertical angles.  This one-page activity contains 4 problems.  Answers are provided.

In this geometry instructional activity, 10th graders use right triangle trigonometry to find the missing angle measure or side length in right triangles. The one page interactive instructional activity contains ten questions. Answers...

For this geometry worksheet, 10th graders determine the measure or measures of the missing angle(s) in a triangle. The one page interactive worksheet contains four questions. Answers and hints are included. 

In this angles worksheet, students answer multiple choice questions about angles on their own and angles inside shapes. Students complete 10 multiple choice questions.

In this cosine worksheet, students will find the length of the third side of a triangle given the length of the other two side. Students will use the Law of Cosines to find the length of the missing side. Answers will be rounded to 3...

In this geometry worksheet, students answer questions about triangles using the correct properties. They find missing angles and sides of triangles. There are 15 questions with an answer key.

In this similar figures instructional activity, learners identify the meaning of similar, corresponding sides, and congruent.  They use proportions to find the length of a missing side.  Students dilate given figures according...

Test your knowledge of the missing angle measure.

Explore opposite angles by chosing the appropriate angle for the missing degree of measure.