Answer:
Explanation:
Pay attention to the coordinates.
Because you are asked to find the perimeter, you need to determine the length of each side.
If the line is horizontal - you look at the x-coordinates. What's the distance between point A to point C?
For the diagonal sides you can use this formula:
d = Square root[( x 2 − x 1 ) ^2 + ( y 2 − y 1 ) ^ 2]