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Re: On an aerial photograph, the surface of a pond appears as [#permalink]
B as well my estimate was: for r: 2*7/16= 7/8 and then 3*49/64= 150/64
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Re: On an aerial photograph, the surface of a pond appears as [#permalink]
Agreed... Answer is 2.4!

B...


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Re: On an aerial photograph, the surface of a pond appears as [#permalink]
B. use the given ratio to convert the radius so, 7/8. area: (7/8)^2 * 3.
I heard we can use Pie=3 on gmat, is that true?
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Re: On an aerial photograph, the surface of a pond appears as [#permalink]
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B. use the given ratio to convert the radius so, 7/8. area: (7/8)^2 * 3.
I heard we can use Pie=3 on gmat, is that true?



I have seen different values used in different problems. I think it depends on the question and the values given to you. For some 22/7 works very nice as it cancels the given values!
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Re: On an aerial photograph, the surface of a pond appears as [#permalink]
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