They should meet the upper arms at an angle of 105-110 degrees.
A corner is the place where two lines of different or similar dimensions meet at an angle.
The top will meet the back panel at a slight angle.
The roads are straight and meet mostly at right angles.
Also to prevent fires, the streets were wide and met at right angles.
Two line segments meeting at an angle of one hundred and four degrees.
In particular, two such roots must meet at an angle of 0, 30, 45, 60, 90, 120, 135, 150, or 180 degrees.
But when the existing walls, floor, ceiling do not meet at right angles the work can become a nightmare.
They were still in level flight as I met the wall of the cloud at an angle and ran into total obscurity.
A castle must have towers wherever two walls meet at an angle, for defense.