Finding the Area of a Triangle by Subtraction
Explore how the area of a triangle on the coordinate plane relates to the area of a rectangle that encloses it.
Task 1
Putting It All Together
Answer these open ended questions on your own or with others to form deeper math connections.
Task 2
On graph paper, plot triangle with vertices , and . Draw the bounding rectangle and explain how you would calculate the area of triangle .
Task 3
In the coordinate plane, the coordinates of the vertices of a triangle are , and . Find the value of such that the area of triangle is 8.