"Your crepe is round."
Translation:Ta crêpe est ronde.
What is the difference between using "votre" and "ta" here? It says they are both correct.
If you mean you (singular, informal) then you use Tu, Ton/Ta, Tes. If you mean You (multiple people, or a single person in a formal setting) you use Vous, Votre, Vos.
because "une crêpe" is feminine and the possessive adjective has to agree in gender and number with the object, not the owner.
There is also "un crêpe", but it has a different meanings:
Just a few examples:
On a hat, "un crêpe" is a black hatband.
On the arm, "un crêpe" is a black armband.