2008 AMC 10B Problems/Problem 7

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Problem

An equilateral triangle of side length 10 is completely filled with in by non overlapping equilateral triangles of side length 1. How many small triangles are required?

A) 10 B) 25 C) 100 D) 250 E) 1000

Solution

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See also

2008 AMC 10B (ProblemsAnswer KeyResources)
Preceded by
Problem 6
Followed by
Problem 8
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
All AMC 10 Problems and Solutions
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