Change the percentage to a decimal fraction. Multiply 360 (the number of degrees in a circle) by the decimal fraction. The result is the angle measure of your pie slice.
For example, 10% would be a 36 degree angle. 25% would be a 90 degree angle. 17.5% would be 360 times .175 = 63 degrees.
You can put this solution on YOUR website! 100%=360 degrees.
50% of 360=180 degrees or 1/2 of the pie.
25% of 360=90 degrees or 1/4 of the pie.
40% of 360=144 degrees or 2/5 of the pie.
75% of 360=270 degrees or 3/4 of the pie.
10% of 360=36 degrees or 1/10 of a pie.