Question

Q15. The angles of a triangle are in the ratio 3:4:5. Find the measure of each angle of a triangle​

Answer 1

Answer:

45° , 60°,75°

Step-by-step explanation:

3x+4x+5x= 180°

12x=180

x=15

Answer 2

Answer:

The required angles of the triangle are 45°, 60° and 75°.

Step-by-step explanation:

Given:

The ratio of the angles of the triangle is 3:4:5.

Let us assume the 3 angles to be 3x, 4x, and 5x.

Therefore,

3x + 4x + 5x = 180° (Sum angle property)

12x = 180°

x = 15°

Therefore,

3x = 3×15° = 45°,

4x = 4×15° = 60° and

5x = 5×15° = 75°.

Thus, the required angles are 45°, 60° and 75°.