You can't catch rhydon in Pokemon white. You wil need to evolve an rhyhorn at level 42 which you can catch in white Forrest.
give it a protector when it's level 10000000000
In Pokémon Pearl, Rhydon evolves once you give it the Protector and trade it to another player.
You have to trade it while holding a proctector item.
To evolve Rhydon, you must have the item "Protector". Once you possess the item, go to Luminous Spring, and Rhydon should be on your evolution list. It does not matter whether or not the item is in your treasure bag, as long as you have it, it should work.
Rhydon, in Pokemon FR/LG, does not evolve.
Rhydon cannot evolve in Pokemon Silver/Gold/Crystal.
Rhydon is not able to evolve in FireRed.
No, Rhydon doesn't evolve in Pokémon Sapphire.
You cannot get the protector to evolve Rhydon in Pokemon Red version, because Rhydon's ability to evolve with a protector into Rypherior is only available in the latest versions: Pokemon Diamond, Pearl, and Platinum. It is impossible to even get a protector in Pokemon Red version, let alone evolve Rhydon.
to evolve rhydon you need a protector. I think you can get one on stark mountain. Then you have to give it to Rhydon and trade with a friend.
Trade your rhydon while it is holding a "protecter".
Rhydon evolves when the "Protector" is held and the Pokemon is traded.
no you can evolve rhydon
Basically Rhydon doesn't evolve on a certain level. You need to have Rhydon hold a Protector and Trade it, with a another person.
..........level rhyhorn to 42.....get a rhyhorn from safari and evolve it to rhydon
Trade it with the Protector on it