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Romashka [77]
2 years ago
9

Find the perimeter of a square whose area is 441 sq km?

Mathematics
1 answer:
Sveta_85 [38]2 years ago
6 0

Answer:

Area of perimeter = 441 sq cm

(side)2 =

\sqrt{441}

=21

the perimeter of sq= 4×side

= 4×21

84

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