In a triangle, the second angle is twice the measure of the first, and the third angle is three times the measure of the second. Find the measure of the third angle.

Question

asked Nov 14, 2018 71.2k views

2 Answers

Cmgchess · Answer 1 · 2018-11-19T16:32:19+0000

if first angle = x then second angle = 2x and third angle = 2x*3 = 6x

so 6x + 2x + x = 180
9x = 180
x = 20

third angle = 6 *20 = 120