** PERIMETERS AND AREAS**

Perimeters of Triangles and Quadrilaterals

The Perimeters of Triangles and Quadrilaterals

Find the perimeters of triangles and quadrilaterals

Perimeter β is defined as the total length of a closed shape.

It is obtained by adding the lengths of the sides inclosing the shape.

Perimeter can be measured in ππ , ππ ,ππ ,π,ππ e. t. c

**PERIMETERS AND AREAS**

Examples

**PERIMETERS AND AREAS**

Example 1

Find the perimeters of the following shapes

**Solution**

- Perimeter = 7π + 7π + 3π + 3π = 20 π
- Perimeter = 2π + 4π + 5π = 11 π
- Perimeter = 3ππ + 6ππ + 4ππ + 5ππ + 5 ππ + 4ππ = 27 ππ

Areas of Circle

Calculate areas of circle

Consider a circle of radius r;

**PERIMETERS AND AREAS**

Example 5

Find the areas of the following figures

**PERIMETERS AND AREAS**

Example 6

A circle has a circumference of 30 π. What is its area?

Given circumference, πΆ = 30 π

C = 2ππ

**PERIMETERS AND AREAS**

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