Tangela cannot learn Ancient Power in Pokemon Leaf Green. I believe you are asking because you want to evolve it to a Tangrowth which only can have in Pokemon Diamond, Pearl onwards.
chain-breed
no, it can only evolve in pearl, diamond or platinum. in those games it evolves into tangrowth when it learns the move ancient power (which it learns on lvl 33, or with a heart scale if your tangala has already passed that lvl).
Piloswine, Yanma and Tangela
After Tangela learns Ancient Power and levels up it will evolve.
Tangela evolves at level 33 or 34 after learning Ancheint Power
Tangela will only evolve if you level it up once it knows ancient power (which it learns at level 33). take it to the move maniac to make it learn it if you didn't teach it to tangela.
tangela evolves when it learns the move ancient power then you get tangrowth... :D
level 33
no, it can only evolve in pearl, diamond or platinum. in those games it evolves into tangrowth when it learns the move ancient power (which it learns on lvl 33, or with a heart scale if your tangala has already passed that lvl).
In Pokemon Diamond and Pearl, Tangela naturally learns the move Ancient Power through levelling up. Once the Pokemon reaches level 33, the game will ask you whether or not you would like Tangela to learn Ancient Power. If it has already passed level 33, chances are that the move can be taught to it via the Move Tutor in Pastoria City. The reason Tangela learns Ancient Power is due to its new evolution - Tangrowth. Learning the move means Tangela has met the requirements for its evolution. Since this new evolution has been introduced with Pokemon Diamond and Pearl, Tangela cannot learn Ancient Power in any previous Pokemon games.
you cant get anchient power in a TM
at lv.36 it learns ancient power then it will evolve.
Piloswine, Yanma and Tangela
you need a tangela so catch it in the pal park (transfer it through Pokemon leaf green or fire red) and let it learn ancient power a tangela learns ancient power at level 34 so keep ancient power and it will evolve at level 35.
You dont
Teach it Ancient Power and level it up to level 33.
You have to teach tangela Ancient Power at Lv.33 Then level it up.
At level 33, Tangela learns 'Ancient Power'.If Tangela levels up while it knows 'Ancient Power', then it will try to evolve into Tangrowth.