ten feet. That's the regulation height, and after the age of twelve....regulation rims are always used.
The average weight of an thirteen year old girl is 101lbs. but that is based on the average height of an thirteen year old girl. If you are taller than an average thirteen year old girl you will weigh more.
It depends on their height.
ALOT OF PRATICE!!!!!
depends on the height
Around 5 foot
its about five feet four inches
It isn't certain because everyone is different.
It is probably among average height for a thirteen year old. if your height ever discourages you, I'm 5'4 and 11!
500000 a year
that depends on height and body frame size