Question

prove that sum of three angles of triangle os 180 degree
pls ans me in details pls​

Answer 1

Answer:

to prove: sum of 3 angles of a triangle is 180°

solution:

let the 3 angles be a, b and c then

(make a triangle and pass a line through point a parellel to line bc )

useing alternate interior angles

a, b and c make a linear pair

hence a+b+c= 180°

hence proved

make a diagram according to what I wrote in bracket and u'll get full marks☺️

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