What is the biggest and smallest planet?

Jan 2, 2016

In our Solar System, Biggest: Jupiter and Smallest: Mercury

Explanation:

Jupiter's Circumference is $439 , 264$ $k m$
Mercury's Circumference is $15 , 329$ $k m$

Take a look at this picture:

http://earthsky.org/space/venus-jupiter-mercury-late-may-2013-triple-conjunction-planetary-trio-may-26