Question

For ΔABC, the measure in degrees of angles A, B, and C are 60, 55, and x + 20 respectively. What is the value of x?

Answer 1

45

Explanation:

60 + 55 + x + 20 = 180

135 + x = 180

x = 180 - 135 = 45

Answer: 45

Answer 2

60 + 55 + x + 20 = 180
135 + x = 180
x = 180 - 135 = 45 degrees Answer.