Question

A polygon has the following coordinates: A(1,-1), B(-4,-1), C(-4,3), D(1,3). Find the length of CD.

Answer 1

it is 5

Explanation:

First, plot and connect the points.

Next, count the number of spaces between C and D.

There are 5 spaces between C and D, so the length of CD is 5 units.

Answer 2

Check the picture below, you can pretty much count the units off the grid.