Posted by **JamieLynne** on Tuesday, November 30, 2010 at 12:48pm.

If I have a diagram of Kepler's laws of planetary motion and it shows change in t1 larger than change in t2 and A1 larger than A2 and asks the question: which of the following is correct?

1.A3 = A3

2.change in t3 > change t3

3.if change t3 = change in t2, then the orbit is circular

4. if change in t1 = change in t2, then A1 = A2

I'm thinking it would be number 3 but I'm really confused by A3 and t3 which isn't shown at all-

Can someone shed some light on this-where is A3 or t3 suppose to be?

Thank you

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