Question

provethat the sum of the angle of triangle is 1
right angle​

Answer 1

Step-by-step explanation:

Take a ∆ ABC

Let us take angle A, angle B, angle C

then,

angle A+ angle B+ angle C = 180°(angle sum

property)

angle C+ angle C= 180°

2angleC = 180°

angle C= 180°/2

angle C= 90°

hence,∆ABC is a right angled triangle

Proved