http://answers.yahoo.com/question/index;_ylt=AhtSF

(a p)= 2 x average distance

a p= 128 x 2

a p= 256 million kilometers

a-p= eccentricity x 2 x average distance

a-p= .5 x 2 x 128

a-p= 128 million kilometers

make it a 2 step equation:

128 2perihelion= 256

subtract 128 from both sides:

2perhelion= 128

divide each side by 2:

perihelion=64 million kilometers

aphelion= 256 64

aphelion= 192 million kilometers

check the answer by doing (a-p) / (a p) the answer should be .5

(192-64) / (192 64)= .5

the answer is correct.

Wasnt this already asked and answered here

http://answers.yahoo.com/question/index;_ylt=AhtSF

This post is last updated on hrtanswers.com at Date : 1st of September – 2022