Naming the Polygon

Q.

How many diagonals does a pentagon has?

1. $3$

2. $4$

3. $5$

4. $6$

Q. How many diagonals does a pentagon have?

1. 5
2. 4
3. 3
4. 2

Q. Draw all the diagonals of a pentagon ABCDE and name them.
[3 marks]

Q. How many diagonals does a pentagon have?

1. 5
2. 4
3. 3
4. 2

Q. Equilateral triangle is polygon.

1. a regular
2. an irregular
3. not a

Q.

A roller is in the shape of ____________.

1. Cuboid

2. Cone

3. Sphere

4. Cylinder

Q. A diagonal is a line segment that joins any two vertices of the polygon and is not a side of the polygon. Draw a rough sketch of a pentagon and draw its diagonals.

Q. Which one of the following is not a parallelogram?

1. Rhombus
2. Trapezium
3. Rectangle
4. Square

Q.

What is the name of a twelve-sided polygon?

1. dodecagon

2. decagon

3. nonagon

4. octagon

Q.

Is the following figure a polygon? If yes, what is its name?

1. Yes, Heptagon

2. Yes, Octagon

3. Yes, Nonagon

4. No.

Q.

A polygon having eight sides, is called:

1. Pentagon

2. Hexagon

3. Heptagon

4. Octagon

Q. The measure of each interior angle of a regular convex polygon is ${156}^{\circ }$. Find the number of sides this polygon has.

1. 12
2. 10
3. 8
4. 15

Q. Which figure given below is a closed curve as well as a polygon?

1. 
2. 
3. 
4. 

Q. Which is the name for a two-dimensional closed shape with nine straight sides?

1. Hexagon
2. Octagon
3. Nonagon
4. Septagon