Question

The sum of all the angles of a triangle is ___ degrees.

Answer 1

Factual: Sum of the angles of the triangle is ${180}^{\circ }$

We have learned that for any polygon, sum of its interior angles is

$(n-2)\times {180}^{\circ }$

where n is the number of sides

For triangle, n = 3

So, sum of all interior angles = $(3-2)\times {180}^{\circ }$

= ${180}^{\circ }$