Question

Find the area of a sqaure whose perimeter is 84 cm.​

Answer 1

Step-by-step explanation:

perimeter of square = 4×a

84=4×a

84÷4=a

21=a

Now,area= a×a

21×21=441cm2

Answer 2

Answer:

Side of square = 84 ÷ 4

= 21 cm.

Area of square = s × s

= 21 × 21

= 441 cm²

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