On the first page of this chapter, we said that the bowl-shaped crater in northernArizona made by a meteor crash was sixty stories deep and 4150 ft across. Use thisinformation as you work Exercises
Evidence of two huge meteor crashes has been found on the floor of the Caribbean Sea. One giant circular crater is 90 miles across and the other is 120 miles across.
(a) Using the information about circles in Exercise, what is the approximate distance around the edge of the smaller crater, to the nearest mile?
(b) Around the larger crater?
Exercise
(a) The distance across the crater is what part of a mile, to the nearest tenth?
(b) The crater is nearly circular. In a circle, the distance around the outside edge is about 3.14 times the distance across the circle. How far is it to walk around the edge of the crater, as measured in feet?
(c) How far is it to walk around the edge of the crater in miles, to the nearest tenth?
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