Question

Find the angles of a triangle which are in the ratio 3:4:5.

STEP BY STEP EXPLANATION. ​

Answer 1

let the angles of triangle are

3x , 4x , 5x

sum of angles of triangle is 180°

3x + 4x + 5x = 180

12x = 180

x = 180/12 = 15 °

hence , angles are

1. 3×15= 45°
2. 4× 15 = 60°
3. 5× 15 = 75°

I hope It will help you.

Answer 2

Step-by-step explanation:

Let, ABC be a triangle whose angles are

3x, 4x and 5x.

Now,

3x+4x+5x=180(Sum of angles of triangle

or, 12x=180

or, x=180/12

x=15

Hence,

Angles are :

3x=3×15=45°

4x=4×15=60°

5x=5×15=75°