Math

A lighthouse is east of a Coast Guard patrol boat. The Coast Guard station is 20 km north of the lighthouse. The radar officer aboard the boat measures the angle between the lighthouse and the station to be 23°. How far is the boat from the station?

asked by Grace
  1. draw a diagram to see that

    20/d = sin23°

    posted by Steve
  2. 47.11

    posted by Tomas

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