From one vertex of an equilateral triangle with side 40 cm, an equilateral triangle with 6 cm side is removed. What is the perimeter of the remaining portion?

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Solution

If an equilateral triangle of side 6 cm is removed
then perimeter =(40 + 34 + 6 +34) cm = 114 cm
Perimeter of the remaining portion = 114 cm.

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