31.3k views
4 votes
If <A and <B are supplementary angles and m<A = 4m<B, find m<A and m<B.

help !!! urgent!!!!!! ​

1 Answer

9 votes

Answer:

m∠A = 144°, m∠B = 36°

Explanation:

Supplementary angles are angles that add up to 180 degrees.

Substitute 4(m∠B) for m∠A.

4(m∠B) + m∠B = 180

5(m∠B) = 180

m∠B = 36°

Substitute 36 for m∠B.

4(36) = m∠A

m∠A = 144°

User Alexandre Moraes
by
8.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories