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OpenStudy (anonymous):
Express answers in simplest exact form. What is the area of a sector with radius 10" and measure of arc equal to 45°? A = ? PI sq. in.
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OpenStudy (anonymous):
???
OpenStudy (anonymous):
arc of 45 degrees means it's 1/8th of a full circle the full circle's area is = pi*r^2 = 100pi sq. in. 1/8th of 100pi is 12.5 PI sq. in.
OpenStudy (anonymous):
thanks
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