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Contests
National and Regional Contests
USA Contests
MAA AMC
AMC 12/AHSME
1962 AMC 12/AHSME
6
6
Part of
1962 AMC 12/AHSME
Problems
(1)
Equal Perimeters of a Square and Triangle
Source:
3/2/2010
A square and an equilateral triangle have equal perimeters. The area of the triangle is
9
3
9 \sqrt{3}
9
3
square inches. Expressed in inches the diagonal of the square is:
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9
2
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2
5
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C
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4
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D
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9
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2
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none of these
<span class='latex-bold'>(A)</span>\ \frac{9}{2} \qquad <span class='latex-bold'>(B)</span>\ 2 \sqrt{5} \qquad <span class='latex-bold'>(C)</span>\ 4 \sqrt{2} \qquad <span class='latex-bold'>(D)</span>\ \frac{9 \sqrt{2}}{2} \qquad <span class='latex-bold'>(E)</span>\ \text{none of these}
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2
9
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2
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2
9
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E
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none of these
geometry
perimeter