Question

A wire is cut into several pieces . Each of the small pieces are bent into a square of side 3 cm . If the total area of the square is 72,sq cm so what will be the original length of the wire

Answer 1

answer is

side of square is 3cm

area=a^2

3×3=9cm^2

area of all squares=72cm^2

72/9=8squares

perimete of one square=4a

4×3=12cm

perimeter of 8squares are 9×12

108cm

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