On a coordinate plane, triangle P Q R has points (negative 8, 8), (negative 8, 4), and (10, negative 4).
The coordinates of the vertices of the triangle are
(–8, 8), (–8, –4), and
(10, –4)
.

Consider QR the base of the triangle. The measure of the base is b = 18 units, and the measure of the height is h =
4
units.

The area of triangle PQR is
square units.