A ladder 10m long is made to rest against a wall. Its lower end touches. the ground at a distance of 6m from the wall. At what height above the ground the upper end of the ladder rests against the wall?
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by pythagoras theorem,
100-36=x²
64=x²
x=8m
at 8m height the upper end of ladder is placed....
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29
Answer:
As we know that Wall will be perpendicular to the ground so the ladder will make a right angle triangle with ground and wall. So, right angle triangle will be formed as shown in attachment.
Now,
ln a right angled △ABC
So ,at 8 metre height above the ground upper and of the ladder rest against the wall.
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