Question

Which three angles would form a triangle?

81,45,56
54,54,56
90,34,56
72,53,56

Answer 1

look if sum is 180

Answer 2

The interior angles of a triangle always add up to 180\(^o\). Try adding up each set of three angles, and only one set should add up to that.

Answer 3

sum of the angles of triangle=180