A 20-metre-tall building has an observer at the top looking at a point on the ground. If the angle of depression to that point is 45°, what is the horizontal distance from the building's base to that point?

Which of the following events is considered a major turning point that fueled Indian nationalism during British rule due to its brutal nature and widespread condemnation?

Which of the following events is considered the first major peasant uprising against the British in India?