Question

how do I construct a 120 degree angle

Answer 1

using a protractor is the easiest way. Do you have one?

Answer 2

Construct an equilateral triangle. Any exterior angle will be 120 degrees

Answer 3

I do but how is that done

Answer 4

http://www.youtube.com/watch?v=a5zcZDPHlOE

Answer 5

Using a protractor to measure the angle is not considered a construction.

Answer 6

have you ever tried using a protractor?

Answer 7

Do what I said. Using a protractor is not a construction.

Answer 8

sheesh you're just showing off... :p

Answer 9

The only tools allowed in a construction are a compass and a straightedge.

Answer 10

you should use only a compass and ruler