Question

if the angle of a triangle are in the same ratio 2:3:4, find the three angles.

Answer 1

$2x + 3x + 4x = {180}^{0 } \\9x = {180}^{0} \\ x = \frac{180}{9 } \\ x = {20}^{0} \\ 2x = {40}^{0} \\ 3x = {60}^{0} \\ 4x = {80}^{0}$

Answer 2

Let the meauseure of per angle be x.

2x + 3x + 4x = 180

9× = 180

× = 180/9

× = 20

Therefore, the measure of all three angle s = (2×20) , ( 3× 20) and (4×20).

= 40 , 60 and 80 degrees.