Question

A theorem is proved using a geometric proof.

Answer 1

what's your question?

Answer 2

true or false ?

Answer 3

Not necessarily. It can be.

Answer 4

if it is proveable

Answer 5

postulate or theorem

Answer 6

im pretty sure its true!

Answer 7

IIRC, a theorem is a statement that is proved using prior assumptions (axioms & postulates). If you use a geometric argument, then it's a geometric proof. You can prove a theorem by different arguments (induction, contradiction and so on).
Personally, I think it's a badly formulated question.

Answer 8

but postulates cant be proven.

Answer 9

speed if light is constant --> that's a well known a postulate