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One side of a equilateral triangle is 24 cm. The mid-points of its sides are joined to form another triangle whose mid-points, in turn, are joined to form still another triangle. This process continues, indefinitely. Find the sum of the perimeters of all the triangles.

A

144 cm

B

169 cm

C

400 cm

D

625 cm

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The correct Answer is:
A
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