SOLUTION: In the diagram of triangle ABC below, AB is congruent to AC. The measure of angle B is 40. What is the measure of angle A. a. 40 b. 50. c. 70. d. 100.

Algebra ->  Triangles -> SOLUTION: In the diagram of triangle ABC below, AB is congruent to AC. The measure of angle B is 40. What is the measure of angle A. a. 40 b. 50. c. 70. d. 100.       Log On


   

Question 883315: In the diagram of triangle ABC below, AB is congruent to AC. The measure of angle B is 40. What is the measure of angle A.

a. 40
b. 50.
c. 70.
d. 100.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A%2BB%2BC=180
and
A=C
So then,
A%2B40%2BA=180
2A=140
highlight%28A=70%29