Art of Problem Solving

2007 AMC 10A Problems/Problem 15: Difference between revisions

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that is exactly what I said NOT to do...
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The answer is (A) 32.
==Problem==
Four circles of radius <math>1</math> are each tangent to two sides of a square and externally tangent to a circle of radius <math>2</math>, as shown. What is the area of the square?
 
{{image}}
 
<math>\text{(A)}\ 32 \qquad \text{(B)}\ 22 + 12\sqrt {2}\qquad \text{(C)}\ 16 + 16\sqrt {3}\qquad \text{(D)}\ 48 \qquad \text{(E)}\ 36 + 16\sqrt {2}</math>
 
==Solution==
{{solution}}
 
==See Also==
 
[[Category:Introductory Geometry Problems]]

Revision as of 16:12, 21 January 2008

Problem

Four circles of radius $1$ are each tangent to two sides of a square and externally tangent to a circle of radius $2$, as shown. What is the area of the square?


An image is supposed to go here. You can help us out by creating one and editing it in. Thanks.


$\text{(A)}\ 32 \qquad \text{(B)}\ 22 + 12\sqrt {2}\qquad \text{(C)}\ 16 + 16\sqrt {3}\qquad \text{(D)}\ 48 \qquad \text{(E)}\ 36 + 16\sqrt {2}$

Solution

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See Also