From a window 10 m above the ground, the angle of elevation of the top of a building across the street is 45° and the angle of depression of its base is 45°. Find the height of the building across the street (in m).

Question

Accepted Answer

20. Depression of base 45: horizontal distance d = 10 (since tan45 = 10/d). Elevation of top 45: extra height above window = d = 10. Total = 10 + 10 = 20 m.

From a window 10 m above the ground, the angle of elevation of the top of a building across the street is 45° and the angle of depression of its base is 45°.
Find the height of the building across the street (in m).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Heights and Distances practice

From a window 10 m above the ground, the angle of elevation of the top of a building across the street is 45° and the angle of depression of its base is 45°.Find the height of the building across the street (in m).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Heights and Distances practice

From a window 10 m above the ground, the angle of elevation of the top of a building across the street is 45° and the angle of depression of its base is 45°.
Find the height of the building across the street (in m).