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OpenStudy (anonymous):
What is the area of a sector with radius 10" and measure of arc equal to 45°?
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OpenStudy (campbell_st):
what fraction of a circle is an angle of 45..? the Sector Area = fraction x pi x r^2
OpenStudy (anonymous):
1/8 times pi times 100??
OpenStudy (campbell_st):
thats it.. well do... to get the fraction just use 45/360 the multiply by the area of the circle
OpenStudy (anonymous):
So do what next?
OpenStudy (campbell_st):
just multiply it out... the answer should be just less that 40 in^2
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OpenStudy (anonymous):
25/2 pi?
OpenStudy (campbell_st):
you thats the exact answer..
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