The rocks near the shore between two lighthouses at points A and B make the waters unsafe. The measure of arc AXB is 300. Waters inside this arc are unsafe. Suppose you are a navigator on a ship at sea. How can you use the lighthouses to keep the ship in safe waters?
In order to keep the ship in safe waters, we can
first make use of the distance between the lighthouses, as well as the 60-degree
central angle in order to find the radius and center of the circle. In this
way, we can set a considerable distance.