Question

Measure of interior angel are in ratio 3:4:5 .what is measure of largest angel

Answer 1

3x+4x+5x=180

12x=180

x=15

the angles are 45 60 75

the largest angle is 75

Answer 2

Answer :-

Put x in the ratio

3x + 4x + 5x = 180° [ angle sum property ]

→ 12x = 180°

→ x = 180°/12

→ x = 15

• 3x = 3 × 15 = 45°
• 4x = 4 × 15 = 60°
• 5x = 5 × 15 = 75°