<p><img alt="" class="file-default media-element" src="https://sothik.com/files/styles/responsive_logobreakpoints_theme_bootstrap_screen-md-max_2x/public/1_4.png?itok=BIO4ueOk">In the figure at the right end, PS is perpendicular to QR. If PQ = PR =26 and PS = 24, then QR =?</p>
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