Question

In the triangle below, m/A = x°, m/B = 3x°, m/C= 24°. Find the value of mA =?

29°
39°
36.5°
O 41.5°

Answer 1

39°

Explanation:

Basically, what you have to do is x+3x+24°=180° (since the measures of all sides inside all triangles is 180°). 4x+24°=180°. 4x=156°. x=39°.