a student stands a certain distance from a building and measures the angle to the top of the building 18.8. the student then walks 24n straight towards the build and measures the angle to the top of the building as 20.2 what is the height of the building
If the angle of elevation of the fifth floor of the building from a point 14.5 meters from its bases is 42 degree, find the height of the floor of the building?
a mine shaft which slopes at an angle of 19 degrees to the horizontal is driven into a hillside for 400 meters. How much lower, to the nearest meter, is the end of the shaft than the beginning?