Question

Determine the value of x

Answer 1

81° + 81° = 162°
360° - 162° = 198°
198° divided by 2 = 99°
180° - 99° = 81°
81° + x + 2x = 180°
x + 2x = 3x
180° - 81° = 99°
99° divided by 3 = 33°
So that means x = 33°
Because 33° (x) + 66° (2x) = 99° (3x) which is missing.

Answer 2

∠HJI =81° -opposed by the vertex_

sum angles= 180°

x°+2x°+81°=180°

3x+81=180

3x=180-81

x=33°

Explanation: