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Joined: 02 Sep 2009
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In the figure above, O is the center of the circle. If AB = 10, what
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21 Nov 2017, 23:13
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In the figure above, O is the center of the circle. If AB = 10, what
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22 Nov 2017, 03:49
Since <AOB=60 and AO=BO(Radius of the circle) => <OAB+<ABO+<AOB=180 => 60+<OAB+<ABO=180 But since AO=BO this means <OAB=ABO (opposite angles are equal if opposite sides are equal). =><ABO=<OAB=60 =>AO=10 which is the radius of the circle. => Area= pi*r*r=10*10*pi=100 pi. Answer=E.



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Joined: 29 Aug 2016
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Re: In the figure above, O is the center of the circle. If AB = 10, what
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22 Nov 2017, 05:50
Answer is E.
The Triangle is equilateral. Radius is 10.
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Re: In the figure above, O is the center of the circle. If AB = 10, what &nbs
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