# How do you find the area of a rectangle whose vertices are (-3,1), (5,1), (5, 8) and (-3, 8)?

Mar 15, 2017

$\text{Area= "7*8=56" } {\left(u n i t s\right)}^{2}$

#### Explanation:

$\text{The corner coordinates given are shown below.}$

$\text{We need to know the length of the two sides}$

$\text{Length of red colored edge :"8-1=7 " units}$

$\text{length of green colored edge :"5-(-3)=8" units }$

$\text{Area= "7*8=56" } {\left(u n i t s\right)}^{2}$