complementary
The angles are complementary.
Two or more angles that sum to 90 degrees are called complimentary angles.
In Geometry that are many different types of polygons. The polygon whose angles equal up to 180 degrees is a triangle.
It is an 8 sided octagon whose interior angles add up to 1080 degrees.
It is a regular 8 sided octagon whose interior angles are 135 degrees and its exterior angles are 45 degrees
What's Greek for 18?
A pentagon is a 5 sided polygon whose interior angles add up to 540 degrees
right angles or 90 degrees
An angle whose degree measure is greater than 90 but less than 180 is simply in that range. Examples would be 91 degrees, 104.5 degrees, 179.25 degrees, and so on. There is no specific name for angles in this category, but it falls into the broader category of obtuse angles, angles with measures greater than 90.
It's called a 'Rhombus'.
Supplementary Angles
Complementary angles