Question

the angels of a triangle are in the ratio 2 : 3 : 7 the measure of the largest angle is

Answer 1

2x + 3x + 7x = 180
12x = 180
X = 15

largest angle = 7x = 105°

Answer 2

Let the angles of the triangle be 2x, 3x and 7x
Perimeter =180
2x+3x+7x=180
12x=180
X=180/12
X=15

Hense largest angle is 7x=7*15= 105