PDF chapter test TRY NOW
From the top of an apartment of height 21 \(m\), a boy observes the top of the lighthouse at an angle of elevation of 45\(^{\circ}\) and the bottom of the lighthouse at an angle of depression of 30\(^{\circ}\). Find the height of the lighthouse.
Answer:
The height of the lighthouse is \(m\).
Register for free to see more content