Question

Prove that sum of three angles of a triangle is 180​

Answer 1

Step-by-step explanation:

Refer to ATTACHMENT.

ATQ,

angle 1+2+3=180°

Straight line.

So, Henxe proved

Answer 2

Answer:

one angle is 30 and second angle is 70 and third number x

30+70 +X =180

100+X=180

x=180-100

X=80 add three number 30+70+80=180