Question

find area of square whose perimeter is 84cm

Answer 1

Perimeter = 84 CMS

4*side = 84 CMS

Side=84/4=21cms

Area of a square = (side)^2

=(21)^2

441cm^2

Answer 2

Answer:

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Step-by-step explanation:perimeter of square =4×side

84=4×side

Side=84/4

Side=21

Area of square =side ×side

Area=21×21

Area=441cm