Question

if one angle of a triangle is equal to the sum of other two show that the triangle is a right Triangle
hint angle A is equal to Angle B + angle C is equal to angle A + angle A is equal to angle A + Angle B + angle C is equal to 180 ​

Answer 1

Answer:

A=B+C

NOW ,

A+B+C=180

A+A=180

A= 90

so, right angled triangle