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OpenStudy (anonymous):
how to calculate the circumference of a circle with a radius 30in, in terms of pi? I think it is 60. Am i right?
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OpenStudy (cwrw238):
60 pi
OpenStudy (anonymous):
thankyou. Can you help me with another?
OpenStudy (anonymous):
35. What is the area of the figure to the nearest tenth? 8.6 in.2 51.8 in.2 103.6 in.2 16.5 in.2
OpenStudy (cwrw238):
the area of a circle is pi r^2 here we have r = 6 and we have 165/360 of a circle so what do you think the formula for the area is?
OpenStudy (anonymous):
isnt it something like 3.14*r^2?
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OpenStudy (anonymous):
im thinking it is 51.8
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