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value of x in region OAB

Expert replies
by gibran » Sat May 17, 2008 7:22 am
In the figure attached, O is the center of the circle. If the area of the region OAB is 2PI, what is the value of x?
A. 45/2
B. 30
C. 45
D. 60
E. 90
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diagram.doc
(23.5 KiB) Downloaded 132 times
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Source: — Problem Solving |

by ksh » Sun May 18, 2008 2:06 am
hi gibran,

we can proceed as follows:

x/360=2pie/16pie

x=360/8=45

is the ans c?

ask me if u have confusion
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by gibran » Mon May 19, 2008 5:46 am
Thanks .... I understood. The OA is C
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