180k views
4 votes
What is the measure of angle B if angle BCD is 100

What is the measure of angle B if angle BCD is 100-example-1

1 Answer

1 vote

The triangle is isosceles so the angle measurements of angle A and C is 80 degrees. So:

180 - (80 + 80)= 20

Answer: 20 degrees

User Rigel Glen
by
4.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.