Posted by **Dylan** on Sunday, January 11, 2009 at 8:12pm.

The diameter of Earth is about 8,000 mi. Suppose a jet is traveling around Earth at an altitude of 30,000 ft. How many miles will the jet travel in a complete circle aroung Earth?

a. 94,247.8 mi.

b. 25,156.7 mi.

c. 38,000 mi.

d. 8,005.7 mi.

- Math -
**Ms. Sue**, Sunday, January 11, 2009 at 8:22pm
5,280 ft. = 1 mile

30,000 / 5,280 = 5.68 miles

8,000 + 5.68 = 8,005.68 miles = new diameter

C = pi * d

C = 3.14 * 8,005.68

C = 25,137.835 miles

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