Question

The angles of a triangle are in the ratio 3:4:5. What is the measure of the smallest angle?

Answer 1

the smallest angle of triangle is 45degree

Answer 2

let the angle be x

it's in the ratio 3:4:5

ie

3x + 4x + 5x = 180

12x = 180

x = 180/12

x = 15

the angles are

3x = 3 × 15 = 45

4x = 4 × 15 = 60

5x = 5 × 15 = 75

smallest angle is 45