A ladder makes an angle of 60 degrees with the ground when placed against a wall. If the foot of the ladder is 2 m away from the wall then find the length of the ladder?

A) 2m

B) 4m

C) 6m

D) None of these


Let AC be the ladder and AB be the wall. 
Then, BC is the distance between base of the ladder & wall = 2 m.
 Also, ∠C = 60o.
Now, In △ABC, cos 60o = AC/BC​



∴ AC = BC/cos60o​
        = 2/1/2 = 4 m

∴ Length of the ladder is 4 m. 





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