Question

The interior angles formed by the sides of a pentagon have measures that sum to 540°. What is the measure of angle B?
 

Answer 1

x - 35 +130 + x - 5 + x - 30 + 75 = 540
3x +135 = 540
3x = 405
x= 405/3
x= 135

m<B = x - 5
m<B = 135 - 5
m<B = 130

Answer 2

Just took the test. 130° is not correct. The corrrect answer is 110°.