Area of Triangles and Parallelograms Answers

Create a rectangle around the parallelogram. The dimensions of this rectangle are .

Find the area of the four right triangles surrounding the parallelogram. The total area of the triangles is square units.

Subtract the triangle areas from the area of the rectangle to obtain the area of the parallelogram. The area of parallelogram ABCD is square units.

The coordinates of the vertices of the triangle are (–8, 8), (–8, –4), and .

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

The area of triangle PQR is square units.