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the foot of a ladder is 6m away from a wall and it's top reaches a window 8m above the ground if the ladder is shifted in such a way that it's foot is 8m

away from the wall. So what height does it's top reach?



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6 Metres

6m sq + 8 m sq=x m sq
100 m = x m sq
x= 10 m= length of ladder

base= 8 m length of ladder= 10 m 
therefore height from ground to top = uder root of( 10 m sq - 8 m sq)= 6METRES

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