Mathematics
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OpenStudy (anonymous):
WILL FAN AND MEDAL PLEASE HELP I HAVE 15 MINUTES
Figure WXYZ is equivalent to a rectangle with 2 quarter circles removed.
What is the area of the shaded portion?
A(162-324(Pie symbol)cm2
B(162-81(pie symbol)cm2
C(162-81(pie symbol)/2) cm2
D(162-81(pie symbol)/4)cm2
11 years ago
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OpenStudy (anonymous):
Where it says pie symbol i meant to type a pie symbol 3.14
11 years ago
OpenStudy (anonymous):
It says the page isnt found
11 years ago
OpenStudy (anonymous):
I have 10 minutes please help
11 years ago
OpenStudy (lexi724):
i cant open the link at school it wont let me im trying to help though may @iGreen or @danniisnotcool can help?
11 years ago
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OpenStudy (anonymous):
It wont let me open it either
11 years ago
OpenStudy (anonymous):
do you have a pic of the shape
11 years ago
OpenStudy (anonymous):
Ya i just posted it
11 years ago
OpenStudy (anonymous):
oh ok
11 years ago
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OpenStudy (anonymous):
so what is the formula for a cirlce?
11 years ago
OpenStudy (anonymous):
What do you mean
11 years ago
OpenStudy (anonymous):
do you know the formula for finding the area of a circle
11 years ago
OpenStudy (anonymous):
You multyply the diameter my 3.14
11 years ago
OpenStudy (anonymous):
1 second i have to log in to something
11 years ago
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OpenStudy (anonymous):
no, it is pi * the radius squared
11 years ago
OpenStudy (anonymous):
so it is pi tmes 9 squared. so what is 9 squared
11 years ago
OpenStudy (anonymous):
18?
11 years ago
OpenStudy (anonymous):
no, that is 9*2. squared means by itself once, so 9*9
11 years ago
OpenStudy (anonymous):
oh so its 81
11 years ago
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OpenStudy (anonymous):
yup. so then find the area of the whole rectangle, i think it was 18*9
11 years ago
OpenStudy (anonymous):
162?
11 years ago
OpenStudy (anonymous):
yes! so now you would subtract the first part with the second part.
you got 162, so 162-81pi cm2
11 years ago
OpenStudy (anonymous):
so your answer should be B
11 years ago
OpenStudy (anonymous):
Ok thanks!
11 years ago
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OpenStudy (anonymous):
np :)
11 years ago
OpenStudy (anonymous):
|dw:1427819692479:dw|
11 years ago