The foot of a ladder is 9 m away from its wall, and its top reaches a window 12 m
above the ground.
(i) Find the length of the ladder.
(ii) If the ladder is shifted in a way that its foot stays 12 m away from the wall, to
what height does its top reach?
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Answer:
i. length of ladder=15m
ii. height of ladder from the ground=9m
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