The perimeter of one face of a cube is 20cm.Find its surface area.
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Answered by
33
The perimeter of one face of a cube is 20cm
L=20cm/4=5cm=s
Area of one face=s*s
=5cm*5cm
=25cm^2
no of faces a cube has=6
=25cm^2*6
=150cm^2
L=20cm/4=5cm=s
Area of one face=s*s
=5cm*5cm
=25cm^2
no of faces a cube has=6
=25cm^2*6
=150cm^2
Answered by
7
A cube has 4 equal sides.
Let x to be one side of the cube.
Since a cube has equal sides
so, 4x=20cm
x=5cm
Area of cube= length×width
=5×5=25cm^2
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