<span><span>1. </span></span>Draw a line segment of length s. Label its endpoints PPP and QQQ.<span><span> </span><span>2. </span></span>Extend the line segment past QQQ.<span><span> </span><span>3. </span></span>Erect the perpendicular to PQ−→−normal-→PQ {PQ} at QQQ <span><span>4. </span></span>Using the line drawn in the previous step, mark off a line segment of length sss such that one of its endpoints is QQQ. Label the other endpoint as RRR.<span><span> </span><span>5. </span></span>Draw an arc of the circle with center PPP and radius PQ normal PQ\ {PQ}.<span><span> </span><span>6. </span></span>Draw an arc of the circle with center RRR and radius QR normal QR\overline{QR} to find the point SSS where itintersects the arc from the previous step such that S≠QSQS\neq Q.<span><span> </span><span>7. </span></span>Draw the square PQRSPQRSPQRS.
