Question

sum of the lengths of three sides of a triangle is ______. a) 180 degree ,b)perimeter , c) 360 degree , d) Area​

Answer 1

Answer:

sum of the lengths of three sides of a triangle is 180 degree.

Step-by-step explanation:

Answer 2

Step-by-step explanation:

one side of triangle is 60

all the sides of the triangle must be equal

then,

the sum of all the triangle = 60°+ 60°+ 60

=180°

a) 180° is the correct answer