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(a) 225 cm²
(b) 32 cm
(c) 2(L + B)
Area of square = (side)²
Perimeter of square = 4 × side
(a)
area of a square = side²
=> 15²
=> 125 cm²
(b)
perimeter of a square = 4×side
=> 124cm = 4 × side
=> 124/4 = side
=> 31cm
(c)
perimeter of a rectangle = 2(l+b)
=> 2(L+B)