Question

A radar screen for air traffic control is in the shape of a circle. The screen has a diameter of 24 inches.

A. What is the area of the screen to the nearest square inch?


B. The radar screen is much smaller than the actual distance. The scale is 6 inches : 25 nautical miles. To the nearest square nautical mile, what is the area of the circular region covered by the radar?


C. The base of the radar screen is a square with a circle inside it. To the nearest square inch, what is the area of the part of the base that is not within the circle? Explain your answer.

Answer 1

Answer:

An airport surveillance radar (ASR) is a radar system used at airports to detect and display the presence and position of aircraft in the terminal area, the airspace around airports. It is the main air traffic control system for the airspace around airports. At large airports it typically controls traffic within a radius of 60 miles (96 km) of the airport below an elevation of 25,000 feet. The sophisticated systems at large airports consist of two different radar systems, the primary and secondary