Sighting the top of a building, a surveyor measured the angle of elevation to be 60 degrees. the measurement is taken 200 feet from the building. find the building's height. express your answer in terms of feet and then round to two decimls.

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.