A 15m long ladder is placed against a
wall in such a way that the foot of the
ladder is 9m away from the wall. At
what height does the ladder reach the
wall?
kediakishan3:
hypotenuse^2=base^2*perpendicular^2
so 15^2=9^2*h^2
225-81=h^2
12=h
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Answer:
12m.
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