Lesson 11.2: Area of Triangles and Parallelograms Answers

On a coordinate plane, triangle A B C has points (1, 1), (4, 0), (3, 5).

Michael is finding the area of parallelogram ABCD. To do this, he follows the steps in the table. Step 1 Draw a rectangle around parallelogram ABCD.Step 2Find the area of the rectangle.Step 3Find the area of the four right triangles created in the corners of the rectangle.Step 4Subtract the area of the right triangles from the area of the rectangle.

On a coordinate plane, parallelogram R S T U is shown. Point R is at (1, 1), point S is at (7, 0), point T is at (10, 4), and point U is at (4, 5).