Question

The angle of a triangle are in the ratio 1 :2 : 3 find the value of smallest angle

Answer 1

Ratio of Angeles=1:2:3

Total=1+2+3=6

1st angle=1/6 × 180=30°

2nd angle=2/6×180=60°

3rd angle=3/6×180=90°

Smallest angle=30°

Answer 2

by 30 60 90 degree angle theorm

1:2 = 30 : 30 x2 = 30 : 60

1:3 = 30 : 30 x 3 = 30: 90

therefore the smallest angle is 30 degree