Question

a foot of a ladder is 6m away from a wall and its top reaches a window 8m above the ground.if the ladder is shifted in such a way that its feet is 8m away from the wall,to what height does its top reaches

Answer 1

ladder is 6m away from wall.and height reached is 8m
 so the length of the ladder is √6²+8²=10m

When the ladder is 8m away from the wall and length of ladder is 10m
height to the top=√10²-8²=6m
so it will reach a height of 6m above ground

Answer 2

ladder is 6m away from wall.and height reached is 8m
 so the length of the ladder is √6²+8²=10m

When the ladder is 8m away from the wall and length of ladder is 10m
height to the top=√10²-8²=6m
so it will reach a height of 6m above ground