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55Answer:Obviously the answer varies with how heavy a mark you leave and the length of the pencil. Start by assuming that a pencil is 17 cm long and has a diameter of 0.2 cm (which gives a volume of just under 0.55 cm3. If you just touch the paper so the line is 1 layer of carbon atoms thick (about 1 nm) and the full 0,2 cm wide the line would be somewhat under 300 km (180 mi) long. Application of some skill in twisting the pencil so the line is thinner could double or triple the line length.
Go to the number 4 on the number line. Draw a vertical line at this point: going up at 90 degrees to the number line. Measure 1 unit [ = the distance from 0 to 1] on this line and mark it as Y. Take a compass and put the point at 0. Take the pencil to the point Y and draw an arc to intersect the number lie at the point X. Then X is the required point, at sqrt(17).
If you can draw a line 1 inch long and divide it into 8 equal parts, then each of the segments would be an eighth of an inch long
a pencil is 7 1/4 inches long with out a rubber on it
Pencil