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Chapter 14: Understanding 3D and 2D Shapes > Exercise 14.2

Exercise 14.2

Examine whether the following are polygons if not why?

1. Figure (i):

  • Reason: A polygon is a figure made up of only straight-line segments.

2. Figure (ii):

  • Reason: This shape is a quadrilateral, which is a closed figure made up of straight-line segments.

3. Figure (iii):

  • Reason: A circle is a curved shape, whereas polygons must be made up of only segments.

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

1. Figure (i): ( sides)

2. Figure (ii): ( sides)

3. Figure (iii): ( sides)

4. Figure (iv): ( sides)

Identify the regular polygons among the figures given below.

Instruction

A regular polygon
Not a regular polygon