Question

WILL REWARD MEDAL!!!! :D
A radius is a line

that intersects the sphere at two points

from the center of a sphere to a line outside

whose endpoint is in the interior of the sphere

that joins the center of a sphere to a point on the sphere

Answer 1

The second one!

Answer 2

OMGS! Are you sure? XD

Answer 3

90% sure :)

Answer 4

Thanks! :D

Answer 5

Np!