In parallelogram ABCDABCD, ∠A∠A and ∠B∠B are adjacent. The measure of ∠B∠B is two times the measure of ∠A∠A. Which equation gives the exact measure of ∠A∠A?

Question

asked May 11, 2018 178k views

1 Answer

← Prev Question Next Question →

Ask a Question

Rojobuffalo · Answer 1 · 2018-05-16T01:37:18+0000

Since adjacent angles in a parallelogram are supplementary (they add up to 180°), and ∠B is double as ∠A, you have this equation:

∠A + 2·∠A = 180°

From that you can find: 3·∠A = 180° ⇒ ∠A = 60°.

In parallelogram ABCDABCD, ∠A∠A and ∠B∠B are adjacent. The measure of ∠B∠B is two times the measure of ∠A∠A. Which equation gives the exact measure of ∠A∠A?

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

Related questions

Categories

Other Questions