Question

A ladder 50m long just reaches the top of a vertical wall .If the ladder makes an angle of 60 degrees with the wall,find the height of the wall.

Answer 1

Answer:

25m.

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Answer 2

Step-by-step explanation:

Let AB represent ladder and AC the represent wall.

Height of ladder(AB)=50m.

Here angle ACB=90°.

Angle of depression=60°.

Angle BAC=60°.

cos60=AC/AB

1/2= AC/50

AC=50× 1/2

AC=25 m.

Height of wall is 25 m.