Question

If the angles of a triangle are in the ratio 1:4:5, find the angle. ​

Answer 1

Answer:

Step-by-step explanation:

Given the angles of a triangle are in the ratio 1 : 4 : 5

Let the ratio be 1x : 4x : 5x

∠A + ∠B + ∠C = 180°

1x + 4x + 5x = 180

→ 10x = 180

→ x = 18

The angles are

1. 18° [ 18 × 1 ]
2. 72° [ 18 × 4]
3. 90° [18 × 5 ]

Answer 2

4+1,=5

we know that the sum of two sides are equal to the third side