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प्रश्न
A ladder is placed along a wall such that its upper end is resting against a vertical wall. The foot of the ladder is 2.4 m from the wall and the ladder is making an angle of 68° with the ground. Find the height, upto which the ladder reaches.
उत्तर
Let the height upto which the ladder reaches be h m.
Given that angle of elevation is 68°
`tan 68^circ = h/2.4`
`=> 2.475 = h/2.4 `
∴ h = 2.475 × 2.4 = 5.94 m
So, the ladder reaches upto a height of 5.94 m
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