Question

(a) Two angles of a triangle are in the ratio of 5 : 4 and the third angle is 90 grade Find all the angle in degree​

Answer 1

Step by Step Explaination :

Let the two angles be ' x '

Therefore, 5x +4x+ 90 = 180....Angle Sum Property

9x+90=180

9x = 180 -90

9x = 90

x = 90/9

x = 10

Therefore 5x = 5 * 10= 50

4x = 4*10 = 40

Therefore angles if triangle = 50,40,90 degrees