Sum of the Measures of Angles of a Polygon

Find the measure of interior angle of a regular octagon in degrees.

Find the sum of Interior angles of a polygon of $47$ sides.

Find the sum of Interior angles of a polygon of $22$ sides.

Find the sum of Interior angles of a polygon of$7$sides

Find the sum of Interior angles of a polygon of $15$sides.

Examine the table. (Each figure is divided into triangles and the sum of the angles deduced from that.)

Figure
Side	$3$	$4$	$5$	$6$
Angle	$180°$	$2\times 180°$ $=(4-2)\times 180°$	$3\times 180°$ $=(5-2)\times 180°$	$4\times 180°$ $=(6-2)\times 180°$

In the figure given above PQRS is a quadrilateral. What is the measure of $ \angle $PSR ?

The angles of a quadrilateral are $ {x°}$, $ {(x-20)}^{°}$, $ {(x-30)}^{°}$, and $ 2{x°}$. What is the value of the greatest angle?

The two angles of a quadrilateral are equal to $ 78°$ and $ 142°$ and the other two angles are equal. The measure of the equal angles are

What is the value of ∠$ S$ ?

ABCD and PQRS are 2 quadrilaterals. Choose the correct statement from the following.

The sum of the angles of a quadrilateral is

The sum of the angles of a quadrilateral is equal to the sum of

Sarita when solving some problems on polygons found that sum of all its interior angles is $ 2753$$ °$. Is Sarita correct?

If each interior angle of a regular polygon of $24$ sides is $k°$, then find the value of $k$.

The value of $x$ in the figure is:

Find the measure of each interior angle if the polygon is a decagon.

In a quadrilateral $ABCD$, $\angle A+\angle C$ is $2$ times $\angle B+\angle D$. If $\angle A=140°$ and $\angle D=60°$, then $\angle B=$ 

The angles of a quadrilateral are $x°,\left(x-10\right)°,\left(x+30\right)° \text{and} \left(2x\right)°$, the smallest angle is equal to 

The angles of a quadrilateral are in the ratio $1:2:3:4$. The largest angle is