Perimeter of one face of a cubeis 120 cm find its total surface area
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Answer:
Step-by-step explanation:
One side of a cube is in form of a square.
Let length of side of the square be a
Perimeter of square = 4a
=>4a= 120
=> a= 30 cm
now side of the cube is 30 cm
Total surface area = 6a^2
= 6 * 30^2
= 6 * 900
= 5400 cm^2
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