Area

In its simplest form, we calculate the area of a Rectangle by multiplying the value for length by the value for width.

We can calculate the area of a Right Triangle by recognizing that the Right Triangle is half of the rectangle formed by the two sides attached to the Right Angle.

If we have a Triangle that is not a right triangle, we can take any side and draw a perpendicular line to the opposite point, and this breaks the triangle into two right triangles.

We have other formulas and methods to calculate the area of simple geometric objects.

And then there is Calculus, where Integration exists to calculate the area between a function and the axis under the function (this requires two lines for the sides of the area.

There is one more fun twist: area can be described as a vector.