HELP!! how do you draw a 75 degree angle without a compass?

Question

i got this question for geometry and i need to draw a 75 degree angle out of an equilateral triangle using only a compass adn ruler, no protractor! please help me and be specfic

Answer 1

If you have an equilateral triangle, all the angles are 60.
If you bisect the angle you will have created two 30 degree angles.
If you bisect one of the 30 degree angles you will have a 15 degree angle.
Then use one of the original 60 degree angles, and copy one of the 15 degree angles onto one of the edges.
60+15 = 75 degrees

I'm of course assuming that at this point you can in fact bisect an angle and that you can copy an angle. If you can't do those two things this won't help you and I'm sorry.

I hope that this does help, and good luck.

Answer 2

Without a compass, use a protractor.