7. A ladder 17 m long reaches a window which is 8 m above the ground, on one side of the street. Keeping its foot at the same point, the ladder is turned to the other side of the street to reach a window at a height of 15 m. Find the width of the street.
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Answer:
by Pythagoras triplets..8,15 and 17 are triplets
hence one side of road measures 15 cm and the other measures 8 cm
hence the total width of the road is 15+8= 23
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1st case
Hypotenuse (ladder)=17m
Height =8m
2nd case
hypotenuse (ladder)=17m
height =15m
Adding both bases=width of the street
=15+8=23m
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