Question
Figure M is made up of nine similar equilateral triangles. Three triangles were removed from Figure M and the remaining triangles were rearranged to form Figure N. The perimeter of Figure M is 243 cm. What is the perimeter of Figure N?
3 m

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Figure M is made up of nine similar equilateral triangles. Three triangles were removed from Figure M and the remaining triangles were rearranged to form Figure N. The perimeter of Figure M is 243 cm. What is the perimeter of Figure N?