c0 ordinate geo

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kartik1979
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Topic: c0 ordinate geo
PostSun Nov 15, 2009 9:41 am

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hi can anybody tell how to solve the question
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maihuna
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PostSun Nov 15, 2009 10:01 am

Radius can be easily calculated to be 10, so only thing left is to decide JK = OK - OJ = 10 - 6 = 4

PS: I may have mis quoted K and J but thats what that happened with figures I can not go back and check who is where...huh..

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PostSun Nov 15, 2009 8:40 pm

kartik1979 wrote:
hi can anybody tell how to solve the question
The key here is to find the radius ..
From the rectangular we know that the base is 6 and the hight is 8, so by dividing 6 and 8 by 2 we got 3 and 4. Therefore, we know that this is 3:4:5 two triangles ( rectangular).
Hence, the diagonal is 10 and if you draw it you will notice that the diagonal = radius
so, 10-8 = 2

IMO A is the answer.

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