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

First, I'll calculate the percentage:



so it was 40 % of people that chose blue

And now we can calculate the angle;
 

the full chart would have 360 Degrees, and the "blue" portion of the chart would have 40 % od 360 or

so the angle would be 144 degrees!

Ibelieve it’s b? hopefully

Area of circle = pi * radius^2radius is given to be 1/2 inchespi * (1/2)^2 = pi/4 inches^2 = 0.785 inches^2