What is the best viewing angle for a computer monitor?

You can connect your phone to your computer and transfer the video file onto it that way. You could also try sending the video to a portable device via email...

First, use your protractor and draw a 30 degree angle. Then, draw the human feet on top of the angle and erase the 30 degree angle carefully.

A rhombus is a diamond shape, it may be longer on sides than a square, but it is used to show a square at an angle, so yes.

Trial and error on scraps. You'll just have to increase or decrease the cut-angle until you're happy. Or, you can buy an Angle Finder that you simply press into the...

No, the U.S. flag should be on the left and the U.S. Marine flag should be on the right.

You can see it best in locations without cloud cover, air pollution and artificial lighting. Rural desert locations are especially good.