a ladder leaning against the wall makes an angle of 60 degrees with the horizontal if the foot of the ladder is 2.5 metre away from the wall find the lenght of the ladder
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cos 60 degree=foot dis /length of ladder
length of the ladder=2.5/cos 60 degree
=2.5/0.5
=5m....ans
length of the ladder=2.5/cos 60 degree
=2.5/0.5
=5m....ans
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