Adjacent Supplementary AnglesAdjoining additional angles
Where is the distinction between non-adjacent and non-adjacent angles?
There are two adjacent angles when they divide a knot and an corner with an arc on one side of the corner and the other on the other side. Note the following chart with the Q and R line parallels. ?H and ?I are side by side. The ?H and O are not next to each other because they do not divide a node.
The ?H and J are not adjacent because they do not divide an edging even though they divide a node. There are two additional angles when the total of their readings is 180°. The ?H and I are adjacent supplementary angles, while the ?H and I are not adjacent supplementary angles. Supplementary angles are a couple of angles that are added to 90 degree.
Additional angles are a couple of angles that sum up to 180 degree. The two are neighbouring angles, i.e. angles that have a joint side and a joint apex, but do not overlay.
Adjoining additional angles
Following articles are from The Great Soviet Encyclopedia (1979). Two angles that have a side in common and whose other sides are on the same line. The angles 1 and 2 in Figure 1 are adjacent additional angles. Great Soviet Encyclopedia, 3rd edition (1970-1979).
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One way to recall
Often the two angles lie next to each other, in this case they make a straight line like this one: Similarly in design are complimentary angles that sum to 90°. It is sometimes difficult to notice what is what between supplementary (adds to 180°) and supplementary (adds to 90°).
A right corner is 90 degree and, yes, "compliment" and "supplement" are not the same term, but it is a way of remembering what it is. Set a line to the right of the character 'c' in 'complementary' to form a '9'.
Complimentary angles are added to 90. Throughout the years we have used advertisements to promote the site so that it can stay free for all. Admittedly, the ad revenues are declining and I have always disliked the advertisements. If we achieve the objective, I will delete all advertisements from the website.