Q. 23

A ladder 15 m long just reaches the top of a vertical wall. If the ladder makes an angle of 60° with the wall, then the height of the wall is
A.

B.

C.

D. 15 m

Answer :


Given AB be the ladder of 15 m length and AC be the wall of h meters making angle with wall as 60°.


Cos 60° = =


=


AC = m

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