A clased box in the shape of a cube has a total outer surface area of 150cm what is the lenght of its side in cm
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Let side of the cube = a
Surface area of a cube = 6 × side^2
150 cm^2 = 6 × a^2
a^2 = 150/6
a^2 = 25
a= root of 25
therefore a = 5cm
Ans : the side of the cube is 5 cm
Surface area of a cube = 6 × side^2
150 cm^2 = 6 × a^2
a^2 = 150/6
a^2 = 25
a= root of 25
therefore a = 5cm
Ans : the side of the cube is 5 cm
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