Question

An airplane flying at 3000m above the ground passes vertically above another plane at an instant when the angle of elevation of the two planes from the same point on the ground are 600m and 450m respectively. What is the height of the lower plane from the ground ?

• A. $1000\sqrt{3}m$
• B. $\frac{1000}{\sqrt{3}m}$
• C. $500m$
• D. $1500\left(\sqrt{3+1}m\right)$

Answer 1

The correct option is A $1000\sqrt{3}m$

The correct answer is option (a). Check the video for the approach.