Answer:
Eccentricity is found by the distance from a focus to the center of an ellipse along the semi-major axis divided by the semi-major axis length.
Remember that the sun is always a focus point to a planet orbiting around the sun.
11) The semi-major axis length is (180+220)/2 = 200
220-200= 20 <= distance from focus to the center of the ellipse along the semi-major axis length
e= 20/200 = 0.1
Here's the answer for the next question too :)
12) (147.2+152.1)/2= 149.65
152.1-149.65= 2.45
e= 2.45/149.65 = 0.0164
Explanation:
yahoo answered these questions 8 years ago O.o