Question

prove that the sum of the angles of a triangle is 180°​

Answer 1

plz eefer to this attachment

Answer 2

Answer:

let take three side of triangle

Frist angle-10

take second angle is equal to twenty

third angle is equal to X

now

sum of angle of triangle=180

a+b+c=180

10+20+x=180

x=180-30=150

x=50

angle of triangle =10+20+150=180

now we can say that angle of triangle=180