2007-08-04 05:22:02 · 6 answers · asked by jessica c 3 in Science & Mathematics ➔ Mathematics
since there are 360 degrees in a graph, but only 100% in percentange
360/100 = 3.6
so for every percentage you get, multiply that by 3.6 and you will get the degrees you will need for your pie chart.
2007-08-04 08:29:52 · answer #1 · answered by Sherman81 6 · 0⤊ 0⤋
The total angle, or 100% of a circle (pie) : 360 degrees.
So, if, for example, the angle of a section is 60 degrees:
60/360 = 0.16666 (recurring 6)
Multiply this by 100 to get the percent:
16.666 (recurring 6) % is the percent of this section.
You can do this with any number.
Or if you have values, you can for example add all the values to give you the total (100% or 360 degrees) and then you take the individual number and divide it by the total, and then you mutiply it by 100 to get the percentage or by 360 to get the angle. finding the angle can help you when you need to draw a pie chart by hand, as you can draw a circle and then, with a protractor, draw in the sections according to their angles.
2007-08-04 12:29:16 · answer #2 · answered by .:Julia:. 4 · 0⤊ 0⤋
Let's say that one section of the pie chart is labeled "Dogs" and you measured that it is 50 degrees of the pie chart. There is 360 total degrees in the chart, so to find the percentage of "Dogs" on the chart, you divide 50 by 360 and get .13888... so the percentage of "Dogs" would be 13.8%. I hope you understand how I explained it!!!
2007-08-04 12:31:23 · answer #3 · answered by Answer♥Girl 6 · 0⤊ 0⤋
Ratios. If the angle is 45 degrees, for example, it is 45/360 of the total. (A circle is 360, so the measure of degrees will always be over 360.) Using this, we can now make a ratio:
45 x
-- = --
360 100
(Always place x over 100)
Now, solve for x by cross multiplying: 4500=360x
and dividing both sides by 360, x=12.5
This works for any angle, so long as you use degrees. If you're using radians, replace the degree measure with the number of radians and 360 with 2pi.
2007-08-04 12:30:39 · answer #4 · answered by Amanda J 2 · 0⤊ 0⤋
Suppose a slice of the pie chart has angle of 60°.
To find what this represents, take the fraction of 60 / 360 and multiply by what whole circle represents.
2007-08-04 12:56:37 · answer #5 · answered by Como 7 · 0⤊ 1⤋
percentage = angle of the thing (in degrees)/360 * 100
Thats it!
2007-08-04 12:50:56 · answer #6 · answered by shubhopriyo 2 · 0⤊ 0⤋