Step by step
The question
Question: make a circle graph of sports 40%, music 35%, art 25%.
sports 40%, music 35%, art 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°
Sports is 40% of the circle.
40% is 0.4.
0.4 times 360 is 144°.
= sports: 40% × 360 = 0.4 × 360 = 144°
Careful!
A percent is out of 100.
Degrees are out of 360.
40% of the circle is 144°.
Careful: not 40% → 40° ✗
Music: 35% of 360 is 126°.
= music: 35% × 360 = 0.35 × 360 = 126°
Art: 25% of 360 is 90°.
= art: 25% × 360 = 0.25 × 360 = 90°
2 Draw the circle graph
We draw a circle and start at the top.
Sports: a slice of 144°, going round like a clock.
Then music, 126°, and so on.
So the slices are sports 144°, music 126° and art 90°.
= sports 144°, music 126°, art 90°
3 Check
Let's check: the slices fill the circle: 144 plus 126 plus 90 is 360.
So the answer is right!
144 + 126 + 90 = 360
Let's look back.
First: each part of 360°.
Then: draw the circle graph.
Last: check.
Answer
= sports 144°, music 126°, art 90°