ANSWER

EXPLANATION
The width of the rectangle is |AB|
A(-1,4) and B(3,3)
We use the distance formula,

This implies that,.




The length is BC
C(1,-5) and B(3,3)





The area is



The answer is 360 because if u do this 20×36 and the 1/2 it u get this 360 20×36 is 720 and then 2÷720 u get 360