Question

If the interior opposite angles of a triangle a are ${52}^{\circ }$ and ${35}^{\circ }$, the corresponding exterior angle will be =

• A. ${87}^{\circ }$
• B. ${17}^{\circ }$
• C. ${78}^{\circ }$

Answer 1

The correct option is A ${87}^{\circ }$

The exterior angle of a triangle is equal to the sum of the interior opposite angles. Hence ${52}^{\circ }+{35}^{\circ }={87}^{\circ }$