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jimthompson5910 (jim_thompson5910):
To find the measure of the central angle, you would multiply the decimal form of the percentage by 360 (since there are 360 degrees in a full circle)
For example, say the percentage is 25%
25% of 360 = 0.25*360 = 90
so the central angle of this example slice is 90 degrees
OpenStudy (kikuo):
Why do we do so?
OpenStudy (kikuo):
Multiply a decimal by a number to get it I mean. What's the reason for doing so?
jimthompson5910 (jim_thompson5910):
do you agree that 25% in decimal form is 0.25 ?
OpenStudy (kikuo):
Yes!
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jimthompson5910 (jim_thompson5910):
so when I took 25% of 360, I multiplied 0.25 with 360 to get 90
notice how 90 degrees is 1/4 of a circle and how 1/4 = 0.25 = 25%
OpenStudy (kikuo):
Alright. Now what should I do. That makes sense.
jimthompson5910 (jim_thompson5910):
look at the instructions
it wants you to find the central angles for sleeping and eating
jimthompson5910 (jim_thompson5910):
so you'll use my example to compute the central angles
jimthompson5910 (jim_thompson5910):
33% of 360 = ???
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