Question 1189442: All seven smaller circles are tangent to each other, and the larger circle is tangent to the six outer smaller circles. The radius of each of the smaller circles is 3 cm. In cm^2, the sum of the areas marked "Aa" is.
A) 8(6(pi) - 4(sqrt(3))
B) 6(4(pi) - (sqrt(3))
C) 8(4(pi) - 5(sqrt(3))
D)9(5(pi) - 6(sqrt(3))
E)7(pi) - (sqrt(3)
Found 2 solutions by greenestamps, ikleyn:
Answer by greenestamps(13200)   (Show Source):
You can put this solution on YOUR website!
Your post contains neither a figure nor a description of the figure, so we have no idea what area is marked "Aa".
Thanks for providing a link to a diagram in you thank-you note to me.
But I already knew what the figure looked like. What I didn't know, and still don't, is what part of the figure is the area "Aa".
Answer by ikleyn(52785)  (Show Source):
You can put this solution on YOUR website! .
Hey, it is really interesting to me to know how seven circles of the same radius
can be tangent " to each other " on a plane.
Could you provide a link, a picture, a sketch or a reference ?
As a bonus, I promise to send you 1 (one) US dollar in response . . .
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I got a response from you pointing to the link
https://etc.usf.edu/clipart/42900/42921/circle-27_42921.htm
But notice, that the 7 (seven) circles of radius of 3 cm in this plot DO NOT TANGENT " each to other ",
so yours wording description is INCORRECT.
It is PRECISELY what I wanted to make sure, that your description is incorrect.
It is incorrect, because it describes a situation which NEVER MAY HAPPEN.
Therefore, I will not send you my one US dollar.
I can not spend my money paying for incorrect descriptions . . .
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