Question
Figure T is made up of nine similar equilateral triangles. Three triangles were removed from Figure T and the remaining triangles were rearranged to form Figure U. The perimeter of Figure T is 378 cm. What is the perimeter of Figure U?
3 m

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Figure T is made up of nine similar equilateral triangles. Three triangles were removed from Figure T and the remaining triangles were rearranged to form Figure U. The perimeter of Figure T is 378 cm. What is the perimeter of Figure U?