THE LESSON:

Today's lesson will be an introduction to the area of a circle.

INSTRUCTIONS:

1. Read the lesson below.
2. Download and save the worksheets.
3. Complete the worksheets and ensure you teacher get the completed work.
4. Transfer the worksheets to your teacher for marking.

Worksheet

Here is where you apply what you are learning:

1. Area of a Circle

Area of a Circle

The number of square units it takes to exactly fill the interior of a circle.

A circle is actually a line, one that connects back to itself making a loop. Imagine the circle to be a loop of string. The string itself has no area, but the space inside the loop does. So strictly speaking a circle has no area.

However, when we say "the area of a circle" we really mean the area of the space inside the circle. If you were to cut a circular disk from a sheet of paper, the disk would have an area, and that it what we mean here.

If you know the radius

Given the radius of a circle, the area inside it can be calculated using the formula where: