Answer: 17.9
Step-by-step explanation:
A (-3,5)
B (1,7)
C (3,3)
D (-1,1)
To find the perimeter, the distance between each point or the length of each side must be found, so we use the distance formula.
d(distance) = √(x₂-x₁)² + (y₂-y₁)²
So, substitute numbers into the formula...
d = √(1 - -3)² + (7 - 5)² = √4² + 2² = √16 + 4 = √20 = 4.4721359 = Line AB
Repeat the steps and you find tha each length equals the same and that it is a square, so multiply √20 by 4 and you get 17.888543
Or about 17.9