Question

prove that the sum of three angle of a triangle 180 dgree​

Answer 1

Step-by-step explanation:

Hey mate here is you answer:

Angles B and B' are corresponding angles, ... So, the angle sum ∠A + ∠B + ∠C is equal to the angle sum ∠A' + ∠B' + ∠C'. The three angles A', B', and C' form together a straight angle (they are along the line l). So, their angle sum is 180.

Hope that it will help you.

Answer 2

Answer:

let the one angle be x

the 2nd is 2x

the 3rd is 3x

the sum of the angle of triangle is 180°

so x+2x+3x=180°

6x=180°

x=180/6=30

hence x=30

2x=2*30=60

3x=3*30=90

hence it is proved that the sum of angles of a triangle is 180°.

THANK You.......