Question

Represent √7.8 on the number line.
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Answer 1

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Step 1 = Take AB =7.6 units and extend it to C so that BC = 1 unit.

Step 2 =Find the midpoint of AC and name it O.

Step 3 =Now O as center and OA as radius draw a semicircle meeting at C.

Step 4 =Now draw a perpendicular line on B meeting the semicircle at D.