In the figure above, two line segments in the x-y plane form a right triangle with the x-axis. what is the area of the triangle ?

!

A = (1/2) * b * h
The base is 10; the x-value going from 0 to 10.
The perpendicular height is 2; the y-value going from 0 to 2
A = (1/2) * 10 * 2
A = 10 units ^2