There exist more distinctions and classifications for different types of trapezoids but their areas are still calculated in the same manner using the following equation. Whereas the Solid Geometry is concerned in calculating the length perimeter area and volume of various geometric figures and shapes. If two sides and the angle between them are known we use one of the formulas depending on which side and which angle are known.
The formula for the surface area of a sphere was first obtained by Archimedes in his work On the Sphere and Cylinder.
Like the perimeter formula there is also a set of area formula for polygons that can be represented using algebraic expressions. H vertical height. In a square its side. The width is 5 and the height is 3 so we know w 5 and h 3.