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A wall is inclined to the floor at an an...

A wall is inclined to the floor at an angle of `135^@`. A ladder of length `l` is resting on the wall. As the ladder slides down, its mid-point traces an arc of an ellipse. Then the area of the ellipse is

A

`(pi l^(2))/(4)`

B

`pi l^(2)`

C

`4pi l^(2)`

D

`2pi l^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
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