Wednesday

July 30, 2014

July 30, 2014

Posted by **kim** on Sunday, March 4, 2012 at 11:37pm.

a. If you flew around Earth by following the equator at a height of 10 kilometers, how many trips around the Moon could you take in the same amount of time, at the same height from the Moon and a t the same speed? Explain

b. The circle whose circumference is the equator is sometime call the ?great circle? of Earth or of the Moon. Use a ratio to compare the areas of the great circles of Earth and the Moon.

- geometry -
**Steve**, Monday, March 5, 2012 at 4:48ama.

trip around earth is pi*(12742+10) = 40061 km

trip around moon is pi * (2476+10) = 7810 km

so, what's 40061/7810?

b. ratio of great circles is the same as the ratio of the radii, since C = 2pi*r

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