Question

Given the diagram of the right angle below, find the value for x. Enter a number only.

(12x-30)° (3x)°

Answer 1

x= 8

Explanation:

Sum of the two angles = 90

12x - 30 + 3x = 90

15x -30 = 90

15x = 90 + 30

15x = 120

x = 120/15 = 8