1.

PQRS is a square with side 10 cm. A, B, C and D are mid- points of PQ, QR, RS and SP respeclively. Then the perimeter of the square ABCD so formed is1). $10\sqrt{2}$ cm2). $20\sqrt{2}$ cm3). $25\sqrt{2}$ cm4). $15\sqrt{2}$ cm

Answer»

$20\SQRT{2}$ cm : OPTION 2 is the correct answer

One side of the sequare formed by JOINING the mid points is $ = \sqrt{5^2 + 5^2} = 5 \sqrt{2} $

PERIMETER $ = 4 \times 5 \sqrt{2} $

$ = 20 \sqrt{2} $



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