How you use a coordinate plane in area and perimeter probelms

To use the coordinate plane to help you find the perimeter and area of various shapes, you first draw the shape on the coordinate plane and then you count the number of unit squares the shape takes up. For the perimeter, it's the number of unit squares that go around the shape.

You can use it to graph shapes.

Step-by-step explanation:

To put it simply, coordinate planes help you graph and measure out certain shapes, which in the end allows you to use it for area and perimeter problems.