Question

12 out of 30 people chose blue as their favourite colour, calculate the angle you would use for blue on a pie chart

Answer 1

Answer:

The angle you would use for blue on a pie chart is 144°.

Step-by-step explanation:

Consider the provided information.

The full chart would have 360 Degrees. That means 30 people equals to 360°

$30\ people=360$

Divide both sides by 30.

$1\ people=12$

Now multiply both sides by 12.

$1\times 12\ people=12\times 12$

$12\ people=144$

Hence, the angle you would use for blue on a pie chart is 144°.

Answer 2

One way:
$\frac{12}{30} x 360$  (360 degrees in a circle which is what a pie chart is)
or $\frac{2}{5}$ x 360
which is $\frac{2}{5}x \frac{360}{1}$ = 144⁰ angle