Question

if the angles of a traingle are in the ratio 1 : 4 : 5 , find the angles
​

Answer 1

Answer:

The angles are 18 , 72 , 90

Step-by-step explanation:

Angle Sum property : Sum of angles in a triangle = 180° .

Ratio of angles = 1 : 4 : 5

So, The angles be x , 4x , 5x .

x + 4x + 5x = 180

10 x = 180

x = 180/10 = 18 .

So the angles are,

x = 18

4x = 72

5x = 90 .

So, The angles are 18 , 72 , 90