# Rectangle 39

Find the perimeter and area of the rectangular with vertices (-1, 4), (0,4), (0, -1), and (-4, 4)

Correct result:

p =  18
A =  20

#### Solution:

$a=| 4-(-1)|=5 \ \\ b=|-4 - 0|=4 \ \\ p=2 \cdot \ (a+b)=2 \cdot \ (5+4)=18$
$A=a \cdot \ b=5 \cdot \ 4=20$

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