Basics of Polygon

Which of these best describes this $2D$ shape?

Give examples of polygons in real life.

List the properties of polygon.

Define the adjacent vertices of a polygon.

Count the number of sides of the polygons given below and name them:

If one angle of a five-sided polygon is $140°$ and the remaining angles are in the ratio $1:2:3:4$. Find the measure of the greatest angle.

Examine whether the following are polygons, if not why?
 

If the number of diagonals in a hexagon is $k$ and the sum of its interior angles is $m°$, then find the value of $k+m$.

If the number of diagonals in a pentagon is $k$ and the sum of its interior angles is $m°$, then find the value of $k+m$.

Choose the sentence that best describes the given polygon.

How many sides does a polygon "Quadrilateral" have?

A polygon with three sides is called like this.

The sum of interior angles of a regular polygon is ${1260}^{°}$. What is the difference between an exterior angle and an interior angle of the polygon:

Least number of line segments required to make a polygon is

How many diagonals are there in a pentagon?

How many vertices are there in the following figure?

If the side of the pentagon-shaped photo frame is increased by $12\%$. Then find the percentage change in the area of the pentagon.

Find the sum of exterior angles of a regular polygon shaped playground, if the number of diagonals in the playground is $14$.

An exterior angle of a polygon is ${72}^{\circ }$. Find the number of diagonal of the polygon:

Which of the following statements is true?