Question

Two angles of a triangle are ${72}^o$ and ${63}^o$. Find the third angle.

Answer 1

Given Two angles of a triangle are ${72}^{\circ },{63}^{\circ }$

As we know that

Sum of angles in a triangle is ${180}^{\circ }$

So the third angle is ${180}^{\circ }-{72}^{\circ }-{63}^{\circ }={45}^{\circ }$