Question

each face of the cube has perimeter of 32 cm find its total surface area

Answer 1

here given that perimeter of square or face of cube = 32cm
we use
perimeter of square = 4×side
so,
32cm = 4×side
32cm÷4 = side
side = 8cm
so we get side = 8cm
put it in the formula of area of cube
that is
area of cube = 6× side^2
so we get
6×8cm×8cm=384cm^2

hence the total surface area of that cube is 384cm^2

Answer 2

Answer:

here given that perimeter of square or face of cube = 32cm

we use

perimeter of square = 4×side

so,

32cm = 4×side

32cm÷4 = side

side = 8cm

so we get side = 8cm

put it in the formula of area of cube

that is

area of cube = 6× side^2

so we get

6×8cm×8cm=384cm^2

hence the total surface area of that cube is 384cm^2

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