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:
- perimeter of square =4a
where a =side = 12 unit
perimeter =4×12=48unit
area of square = side ²
= 12²
144unit²
2 . perimeter of cube = 6a
a=side = 30 unit
6×30
=180unit
area of cube = a²
=30²
=900unt²
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