Question

What is the sum of the inyternal angles in a $7$ sided polygon?

Answer 1

Finding the sum of the angles in $7$ sided polygon

The formula for finding the sum of interior angles of a $n-$sided polygon is given as

Sum of all angles$=(n-2)\times 180°$

For a sided polygon $n=7$

$\Rightarrow$Sum of all angles$=(7-2)\times 180°$

$\Rightarrow$ $=5\times 180°$

$\Rightarrow$Sum of all angles$=900°$

Hence, the sum of all angles in a $7$ sided polygon is $900°$.