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OpenStudy (dumbcow):
In the figure, the circle PQR with radius r is enclosed in the sector OAB with centre at O and radius 48 cm. Given that angle AOB = 60 degrees, find: a) the value of r. b) the area of the shaded region, giving your answer correct to 1 decimal place.
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OpenStudy (dumbcow):
OpenStudy (saifoo.khan):
its easy but lengthy. :/
OpenStudy (dumbcow):
yeah, it took me awhile wanted to check to see if anyone got the same answer
OpenStudy (anonymous):
i got 16 for the small radius, and 175.3 for the area, is that what you got?
OpenStudy (dumbcow):
yep :) awesome
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