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An equilateral triangle is made of a large number of “unit” equilateral triangles of sides 1 centimeter each. The area of the big equilateral triangle is N times as big as the area of the unit equilateral triangle. What is N? (P.S. The Equilateral triangle has side lengths of 7 units. 

 Jan 29, 2021
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N = 72

 Jan 30, 2021

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