In Sketchup, how to create an exact angle within a box?

Question

I'm aware that this is a very basic question, but I can't seem to find the right terms to Google for. Any guidance would be appreciated.

What I want is a rectangular box with a triangular piece removed from it. The angle of the triangle being removed should be a specific angle.

What I've tried:

1. Draw a square
2. Pop that out into 3d
3. Draw a line on one of the six sides of the box
4. Push that line into the box using the Move tool

This gives me the shape I want, but without the exact control over the angle I need.

I've also tried using the Rotate tool on the line drawn in Step 3 above, and while that gives very interesting results, none of them is what I need.

My last resort will probably be a roundabout way of doing this, by building one half of the shape, and mirroring it - but that doesn't seem very proper either. Any suggestions?

Answer 1

You need to use the protractor tool.

1. Draw a square.
2. Pop that out into 3d.
3. Use the protractor tool to draw a guide at a specific angle.
4. Draw line using guide.
5. Use push/pull to push out the not needed part.

If that doesn't help then watch all of these videos. (I would suggest watching them even if my instructions helped.)