Question

1.The angles of a triangle are xº, x + 15° and 2x – 15°. Find the smallest angle of the
triangle.​

Answer 1

x + 2x+15 + x+15 =180

4X + 30 = 180

4x = 180-30=150

X = 150/4 = 37.5....

so the smallest angle is X = 37.5

Answer 2

(x)+(x+15)+(2x-15)=180°

x+x+2x=180°

4x=180°

x=180/4

x=45°

x°=45°

x+15°=45°+15°=60°

2x-15°=90°-15=75°

Hence,x°is smallest angle