The angle of elevation of a cliff from a fixed point A is θ. After going up a distance of 'k' m towards the top of the cliff at an angle φ, it is found that the angle of elevation is α. What is the height of the cliff?
Q1. The angle of elevation of a cliff from a fixed point A is θ. After going up a distance of 'k' m towards the top of the cliff at an angle φ, it is found that the angle of elevation is α. What is the height of the cliff?
Answer: k sin φ / (tan α - tan θ)
Explanation: Using the sine rule and the tangent function, we can derive the expression for the height of the cliff.