Polygons

If $ABCDE$ is a regular pentagon, what is the value of $x$ in the figure below?

In an equiangular polygon, the measure of each exterior angle is 25% of the measure of each interior angle. How many sides it has?

Paul is fencing his backyard with an iron fence. The total length of the iron fence required is $100$ yards. If the backyard is in the shape of an equilateral quadrilateral, the length of one side of the backyard$=$_____ yards.

Point which is in the interior of curve is:

The measure of all interior angles of a regular hexagon is $120°$.

The measure of all interior angles of a regular hexagon is 

Regular polygons are both equiangular and equilateral.

What is meant by the regular polygon?

In the below polygon, the point $P$ is in the interior of the polygon.

In the below polygon, identify the points that are on the boundary.

What is meant by plane curve?

A piece of paper is a model for a plane surface.

What is meant by the plane surface?

Which of the following is an equilateral polygon?

A regular pentagon has a perimeter of $125$. Find the length of one side of the pentagon. 

Which one of the following is a pentagon?

Some figures are given below.

How many number of concave polygons are there?

Some figures are given below.

How many number of convex polygons are there?

Some figures are given below.

How many number of polygons are there?

Answer the following.

How many diagonals does a quadrilateral have?