Step by step
The question
Question: make a circle graph of rent 35%, food 25%, fun 15%, save 25%.
rent 35%, food 25%, fun 15%, save 25%
A circle graph shows the parts of a whole as slices.
The whole circle is 360 degrees.
the whole circle = 360°
1 Each part of 360°
Rent is 35% of the circle.
35% is 0.35.
0.35 times 360 is 126°.
= rent: 35% × 360 = 0.35 × 360 = 126°
Careful!
A percent is out of 100.
Degrees are out of 360.
35% of the circle is 126°.
Careful: not 35% → 35° ✗
Food: 25% of 360 is 90°.
= food: 25% × 360 = 0.25 × 360 = 90°
Fun: 15% of 360 is 54°.
= fun: 15% × 360 = 0.15 × 360 = 54°
Save: 25% of 360 is 90°.
= save: 25% × 360 = 0.25 × 360 = 90°
2 Draw the circle graph
We draw a circle and start at the top.
Rent: a slice of 126°, going round like a clock.
Then food, 90°, and so on.
So the slices are rent 126°, food 90°, fun 54° and save 90°.
= rent 126°, food 90°, fun 54°, save 90°
3 Check
Let's check: the slices fill the circle: 126 plus 90 plus 54 plus 90 is 360.
So the answer is right!
126 + 90 + 54 + 90 = 360
Let's look back.
First: each part of 360°.
Then: draw the circle graph.
Last: check.
Answer
= rent 126°, food 90°, fun 54°, save 90°