One side of an equilateral triangle is 24 cm. The mid-points of its sides are joined to…
Mathematics · JEE Main · NTA Exams — Progression and Series
One side of an equilateral triangle is 24 cm. The mid-points of its sides are joined to form another equilateral triangle. Again another equilateral triangle is formed by joining the mid-points of this triangle and the process is continued indefinitely. Determine the sum of the perimeters of all such triangles.
- 128
- 72
- 144
- 216
Answer
(B) 72
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