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<p><p>Let the length of a square be &lsquo;a&rsquo;.</p> <p>And the radius of a circle be &lsquo;r&rsquo;.</p> <p>Now, a = 2r ----- (i)</p> <p>Perimeter of the rectangle = 1/2 &times; 4a = 2a</p> <p>=&gt; 2(l + b) = 2a</p> <p>=&gt; 2 &times; 16 = 2a</p> <p>=&gt; a = 16 cm</p> <p>Putting value of &lsquo;a&rsquo; in (i) we get,</p> <p>Radius = r = 16/2 = 8 cm</p> <p>Area of the circle = &pi;r<sup>2</sup>&nbsp;= 2 &times; 8 &times; 8 = 128 cm<sup>2</sup>.</p></p>
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