Qwerty90
If the smaller cylinder has a lateral area of approximately 113 square meters, what is the approximate lateral area of the larger cylinder?
Answer 48.4 square meters
263.7 square meters
615.2 square meters
1,435.5 square meters
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Qwerty90
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Qwerty90
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My scale factor is 3:7 or squared 9:49
saifoo.khan
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\[\frac{A_1}{A_2} = \frac{(L_1)^2}{(L_2)^2}\]this is the formula i guess
Qwerty90
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I suppose..
saifoo.khan
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i forgot the formula. but give it a try. this must be it
Callisto
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(9/21) ^2 = 113/x
(3/7) ^2 = 113/x
9/49 = 113/x
x= 615.2
Callisto
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@saifoo.khan the formula is correct
saifoo.khan
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Hats off to my memory! ;)
did this 13 months ago. :D
Qwerty90
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Thanks guys!
Callisto
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welcome :)