Question

6. If one angle of a triangle is equal to the sum of other two show that the triangle a right triangle.
Hint^A=^B+^C=^A+^A=^A+^B+^C=180°
​

Answer 1

Answer:

we know that A + B + C = 180°

given A= B+C

from both

A+A=180°

2A=180°

A=90°

as one angle is 90° so it is a right angled triangle.

Hope it helps you......