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OpenStudy (anonymous):
OpenStudy (jack1):
=Area of square - Area of circle
+ 28 x 28 - pi x 14^2
OpenStudy (luigi0210):
First what you do is find the area of the circle and subtract from the area of the square
OpenStudy (anonymous):
So what would be my answer or the steps I need to take to get my answer
OpenStudy (anonymous):
Here you would figure out the area of the square.
Then you would figure out the area of the circle.
Then you would subtract the area of the circle from the area of the square
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OpenStudy (anonymous):
So I multiply 28 by 28 first?
OpenStudy (luigi0210):
Yes
OpenStudy (anonymous):
I got 784
OpenStudy (anonymous):
Now what?
OpenStudy (luigi0210):
Find the area of the circle, it's like Jack1 said
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OpenStudy (anonymous):
How would I do that?
OpenStudy (anonymous):
Where do I go from 784
OpenStudy (luigi0210):
\[\Pi r^2\]
OpenStudy (anonymous):
14 x 2?
OpenStudy (anonymous):
No,
It's 14 SQUARED, not 14*2
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OpenStudy (anonymous):
I got 196
OpenStudy (luigi0210):
time pi
OpenStudy (anonymous):
3.14?
OpenStudy (luigi0210):
Well do yo want an estimate or an exact answer?
OpenStudy (anonymous):
I have to round the final answer to the nearest hundredth
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OpenStudy (anonymous):
as needed
OpenStudy (luigi0210):
Then use 3.14
OpenStudy (luigi0210):
so it's \[28^2-(14^2*3.14)\]
OpenStudy (anonymous):
i got 615.44
OpenStudy (anonymous):
Am I right?
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OpenStudy (luigi0210):
Yes, now just subtract it from 28^2 and you're done
OpenStudy (luigi0210):
The answer should be 168.56
OpenStudy (anonymous):
When you round that to the nearest hundredth? what would it be? 169
OpenStudy (luigi0210):
Nearest hundredth or hundred?
OpenStudy (anonymous):
hundredth
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