represent root 6.4 on the no. line
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draw a line of 6.4 cm then extend 1 cm more to form 7.4cm Mark as A -C draw perpendicular of AC mark O to A and draw an arc to C . Then draw a straight line from B to join the arc . Then from point 0 to the arc extend and mark it as root 6.4
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step 1: draw a line AB 6.4cm
step 2: draw 1cm again from B to C
step 3: find mid point of AC and then draw a semicircle with center from A to C
step 4: draw a straight line from B intersecting the semicircle and mark as D
step 5: draw an arc with centre B and radius BD which intersect the number line at E
and that E will be √6.4 on number line.
step 2: draw 1cm again from B to C
step 3: find mid point of AC and then draw a semicircle with center from A to C
step 4: draw a straight line from B intersecting the semicircle and mark as D
step 5: draw an arc with centre B and radius BD which intersect the number line at E
and that E will be √6.4 on number line.
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