Question

Calculate the sum of all the interior angles of a polygon having $8$ sides.

• A. ${1080}^{\circ }$
• B. ${540}^{\circ }$
• C. ${1260}^{\circ }$
• D. ${360}^{\circ }$

Answer 1

The correct option is A ${1080}^{\circ }$

The sum of all the interior angles of a polygon is calculated using the formula: $(n-2)\times {180}^{\circ }$

The sides of the given polygon are $8$.

Therefore, the sum of all the interior angles will be $(n-2)\times {180}^{\circ }$.

$=(8-2)\times {180}^{\circ }$

$=6\times {180}^{\circ }$

​​​​​​​$={1080}^{\circ }$