Find the measure of the central angle that you would draw to represent 12.5% in a circle graph.

45°

Step-by-step explanation:

360° is 100% (or 1, the whole)

so the ratio to use is 360:100 = x : 12.5

the proportionality between 360 and 100 must be the same as between the unknown value x and 12.5 (this is more or less the meaning in words), which leads to

x = (12.5*360)/100 = 45°

Another way of seeing it: 12.5% is 1/8 of 100% (therefore 1/8 of 360) so 360/8 = 45°

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.