There are different stories on this; he either strangled it, or shot it with a specially created arrow.
Hercules tried at first to kill the Hydra by cutting off its heads, but that epically failed since two heads grew back when he cut one off. So, Hercules dipped an arrow into a pool of the Hydra's own venom and shot it. The monster soon died.
I assume you mean Hercules/Heracles. Hercules didn't kill Medusa---Perseus did.
Perseus killed Medusa by looking into a mirror to avoid Medusa's gaze and killed her.
Hydra
During the 12 Labours of Hercules, he killed The Nemean Lion, The Lernean Hydra and The Stymphalian Birds
He was sent to kill the seven headed monster, the hydra.
in the Hercules film, he stops and sears at the hydra after he cuts off some heads and i saw the hydra had 27 heads and also had 29 heads when Hercules is falling into the hydra
The Hydra but it is interesting to note that it was the Hydra that did Hercules in at the end.
In the end it was the Hydra that killed Hercules
Hercules killed the hydra, not odysseus
The nine headed creature was a hydra
no she didnt but she did unkowningly kill him by puting hydra blood in a so called love p.
Hercules
He killed the Hydra
You have to get the mirror from Aphrodite after you beat the Hydra and Cerberus. After, Hercules will help you.