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Consider an equilateral triangle of a si...

Consider an equilateral triangle of a side of unit length. A new equilateral triangle is formed by joining the mid-points of the first one, then a third equilateral triangle is formed by joining the mid-points of the second. The process is continued. The sum perimeter of all triangles thus formed is

A

2 units

B

3 units

C

6 units

D

Infinity

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