UPSC 2013 CDS 2 Math Paper
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Question : 57 of 100
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A triangle DEF is formed by joining the midpoints of the sides of triangle ABC. Similarly, a triangle PQR is formed by joining the midpoints of the sides of the triangle DEF. If the sides of the triangle PQR are of lengths 1, 2 and 3 units, what is the perimeter of the triangle ABC?
[2013 CDS-II]
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