Question

Calculate the missing angle measures

angle A= 102 degrees
angle B= unknown
angle C= 57 degrees
please hurry!

Answer 1

The answer is 21 degrees.

Explanation:

First of all, you should know that all the triangle sides add up to 180 degrees. Add up all the degrees, 102 + 57 + x.

102 + 57 + x = 180

159 + x = 180

x = 21

Answer 2

angle b = 21 degrees

Explanation:

102+57+ x =180 all triangles equal 180 degrees so set equal to 180

159+ x =180

x= 21