"Vertical, with zero declination for loads under compression;" no intention to flippant, but more information is needed about the structure or load for a useful answer to be tendered. If the structure is intended to hold liquid or gas the strongest structure may spherical, etc.
A bearing is a clockwise rotation from the North to the angle of the object.
a bearing is the angle from north moving clockwise 360 degrees a negative bearing is moving counterclockwise from north
90 degrees
The bent pyramid got it's name because it's sides don't slope evenly. When they were building it the structure became unstable because the slope angle was too steep. To stop the building from collapsing they finished it with the sides at a less steep angle.
0 degree
Bearing is the angle anti-clockwise from "north" or the 90 degree line on a Cartesian plane
Sunlight is at its strongest when it is at a perpendicular angle; at oblique angles it is weaker.
azimuth
the most common angle used in constructing building is 90 degree.
the bearing of something is the angle. for example there are 180 degrees on a straight line so the bearing of a straight line is 180 degrees. To work out the bearing of something though you need a protracter
They use a right angle!
Water has an angular structure; the angle has 104,45o.