What should be the length of the ladder so that it makes an angle of 60 with the ground?

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What should be the length of the ladder so that it makes an angle of 60 with the ground?


Let the length of the ladder=l (m)


In ∆ABC,


cos60° =

What should be the length of the ladder so that it makes an angle of 60 with the ground?


=

What should be the length of the ladder so that it makes an angle of 60 with the ground?


l =9.5×2 19 m


Therefore length of Ladder is 19 m.