(6) 122 UI
(a) 112 cm
(ii) If the length of a diagonal of a square is 20 cm, then its perimeter is
(c) 40 12 cm
(d) 200 cm
(a) 10 cm
(6) 40 cm
times, its area is decreased by
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paerumeter of square = 4× side =20× 4
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