the side of a cube is 40cm. find its total surface area
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side = 40
area = 6 × 40^2
= 6 × 1600
= 9600cm^2
area = 6 × 40^2
= 6 × 1600
= 9600cm^2
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given side = 40 cm
total surface area = 6 × side²
= 6 × 40 × 40 =960 cm²
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