Question

The perimeter of a square bulletin board is 280 cm how long is one of its side

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Answer 1

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Perimeter of square = 4a

280 = 4a

a =

`280 / 4 = 7 0`

Side = 70cm

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Answer 2

70cm

Explanation:

Perimeter of square= 4×Side

280/4=Side

70=Side

70cm

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