Question

Angle sum property of triangle​

Answer 1

Answer:

add all the sides to get angle sum property of triangle

Step-by-step explanation:

Answer 2

Answer:

$angle \: sum \: property \: of \: triangle \\ \\ sum \: of \: all \: angle \: of \: triangle \: is \: 180 \: degree$

if the angles of a triangle is a , b , c

then

a+b+c = 180°