Question

If the angles of a triangle are in the ratio 1:4:5. Find the angles.​

Answer 1

Angle Sum property : Sum of angles in a triangle = 180° . So, The angles be x , 4x , 5x . x = 180/10 = 18 .

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Answer 2

Step-by-step explanation:

Let the angles of a triangle be x,4x and 5x.

Since we know that the sum of all the angles of a triangle is 180 ⁰.

Therefore A/Q

=> x + 4x + 5x= 180 ⁰

=> 10x= 180 ⁰

=> x = 180 ⁰/10

=> x = 18 ⁰

So the angles are:

x = 18 ⁰

4x = 4 × 18 ⁰ = 72 ⁰

5x = 5 × 18 ⁰ = 90 ⁰