What is the length of the following lines?

Is it even so? then I defy you, stars!

Thou know'st my lodging: get me ink and paper,

And hire post-horses; I will hence to-night.

hexameter

pentameter

decameter

The length of the lines stated above is pentameter.

Here's why:

The number of words included per phrase is in maximum of five. In Greek or Latin, penta means the number five. Pentameter is the term used to refer to a line of verse which is five metrical feet in length.