find the area and perimeter of the following with step by step explanations
1. square-length=12
2. cube-length=30
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Answer:
Length of square= 12 units.
Area of square is side*side. So, area= 144 unit².
Perimeter of square= side*4 = 48 units.
Length of Cube= 30 units.
Area of one face of that cube = side*side = 900 unit².
Total area of all faces= no. of faces * area of one side = 6* 900= 5400 unit².
Perimeter of that cube= no of sides* side length= 12*30 units= 360 units.
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