From the base of a pole of height meter, the angle of elevation of the top of a tower is . The pole subtends an angle at the top of the tower. Then the height of the tower is:

Question

From the base of a pole of height  meter, the angle of elevation of the top of a tower is . The pole subtends an angle  at the top of the tower. Then the height of the tower is:

Canvas Classes · Accepted Answer

🧠 Look Down From the Tower — Not Up From the Pole

This is a classic two-angle problem. There is a pole of height  m and a tower of unknown height  on the same ground. From the base of the pole, the elevation of the top of the tower is . From the top of the tower, the pole subtends an angle of .

The standard trick: switch viewpoints. If the elevation from the base of the pole to the top of the tower is , then the depression from the top of the tower to the base of the pole is also  (alternate

More questions from this chapter

More questions from this chapter