Angle Addition
Grade 645 min
aligned to 4.md.7
Learning Objective
I can find the measure of a larger angle by adding the measures of its smaller component angles.
Lesson Flow
Watch Video
PARALLEL LINES AND TRANSVERSALS | Find the Angle Measure | Geometry Online Lesson
Unknown Channel
Practice
12 questions • Short answer
Exit Ticket
“Two parallel lines are cut by a transversal. One angle formed measures 130°. This angle and another angle, x, form a straight line. Angle x is composed of two smaller angles, one measuring 20°. What is the measure of the other smaller angle? A triangle has angles measuring 55° and 65°. The third angle, x, is formed by two smaller angles, one measuring 30°. What is the measure of the other smaller angle that makes up angle x?”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
