Question

Prove that the sum of angles of a triangle is 180 . if angles of a triangle are in the ratio. 5:4:9, show that the triangle is a right triangle.

Answer 1

Step-by-step explanation:

Yes because, 9x+5x+4x = 180

》 18x = 180

So, x= 10

Therefore, 9x = 90⁰

So, it is right angled triangle...