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OpenStudy (anonymous):
Help! with circle and Diameter! What is the area of a circle with diameter 8 inches?
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OpenStudy (harsimran_hs4):
area of circle is : pi*(d/2)^2
OpenStudy (calculusxy):
To solve this problem, we need to find the radius first. The radius is half of the diametre.
OpenStudy (calculusxy):
So half of 8 is 4. Now 4^2 equals to 16. And now, you have to multiply it with pi. Meaning that you have to multiply 16*3.14=50.24
OpenStudy (anonymous):
thank you @calculusxy
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