show X geometrically
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We now show how to find √x for any given positive real number 'x' geometrically. We shall now find √4.5 geometrically. Mark the distance 4.5 units from a fixed point P on a given line to obtain a point Q such that PQ = 4.5 units. ... Draw a line perpendicular to PR passing through Q and intersecting the semicircle at S.
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