They are perpendicular and one diagonal is bisected.
According to Wikipedia: A diagonal can refer to a line joining two nonconsecutive vertices of a polygon or polyhedron... See the related link for more detail.
diagonal
1) Diagonals intersect at right angles. 2) The diagonal bisecting the angle between the two longer sides also bisects the other diagonal. 3 The area of a kite = the product of both diagonals ÷ 2.
The address of the Diagonal Printing Museum is: 101 East 1St Street, Diagonal, IA 50845
The grain - is the pattern in the wood, showing the direction of the fibres.
Timber is stronger across the grain than along the grain.
The direction of the grain in timber significantly impacts the strength of the wood. Wood is strongest along the grain, so a piece of timber with the grain running parallel to the load will be stronger than if the grain runs perpendicular to the load. This is because the fibers in the wood provide more support and resistance to forces acting along the grain.
bias
BIAS
BIAS
In many ways, firstly for grain quality. Age, type of timber, dampness/dryness
For the tree's timber, a common name is 'honeysuckle'. It is a beautiful timber, carrying a complex grain of ribbons.
In exchange, the Greeks got grain, timber, and metal.
they resist stress and spread the load over the length of the board
The Greeks traded fish for products such as grain timber flax.
Diagonal LineA diagonal line goes from one corner to another corner. See picture at the Related Link.