1. Find the surface area of a cube whose(7) edge is 8 cm,ii) perimeter – InterviewSolution

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1. Find the surface area of a cube whose(7) edge is 8 cm,ii) perimeter of one face is 20 cm

Answer»

1) Edge of cube = 8 cmSurface area = 6*edge*edge = 6*8*8 = 384 cm^2

2) Perimeter of one face = 20 cmThen, 4*Edge = 20Edge = 20/4 = 5 cmSurface area = 6*edge*edge = 6*5*5 = 150 cm^2

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