I do not own a Pc to reset my iPad and I can not remember I passcode

You cannot. A computer is required.

You can borrow one form a friend or relative, or If you don't have a computer and you can't borrow one, you can to go to an Apple Store or Apple Authorized Service Provider for help.

Assuming you have Find My enabled on the phone and it has a data connection you can log into your iCloud account at https://icloud.com/find and erase it.