Circle graph: soccer 9, tennis 6, swim 15

Step by step

The question

Question: make a circle graph of soccer 9, tennis 6, swim 15.

A circle graph shows the parts of a whole as slices.

The whole circle is 360 degrees.

1 Find the total

First the whole: 9 plus 6 plus 15 is 30.

2 Each part of 360°

Soccer: 9 out of 30, that is 3/10.

Of 360 degrees: 108°.

Tennis: 6 out of 30, of 360, is 72°.

Swim: 15 out of 30, of 360, is 180°.

Careful!

The parts are counts, not percents.

Each one is out of the total, 30.

3 Draw the circle graph

We draw a circle and start at the top.

Soccer: a slice of 108°, going round like a clock.

Then tennis, 72°, and so on.

So the slices are soccer 108°, tennis 72° and swim 180°.

4 Check

Let's check: the slices fill the circle: 108 plus 72 plus 180 is 360.

So the answer is right!

Let's look back.

First: find the total.

Then: each part of 360°.

Then: draw the circle graph.

Last: check.