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OpenStudy (anonymous):
The area of sector AOB is 20. 25 pi cm2. Find the eaxact area of the shaded region.
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OpenStudy (anonymous):
OpenStudy (anonymous):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
Hint: Area of Shaded Region = (Area of Sector) - (Area of Triangle)
OpenStudy (anonymous):
urrggg
jimthompson5910 (jim_thompson5910):
Area of Sector = (90/360)*pi*r^2 in this case, r = 9
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jimthompson5910 (jim_thompson5910):
Area of Triangle = (1/2)*b*h b = 9 h = 9
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