Solving Problems About Polygons in the Coordinate Plane
Apply It
> Use what you leamed to solve these problems.
Central Park in New York
City is shaped like a rrectangle. On a map of the park
in the coordinate plane, three of the vertices are located at (-2,-!?
(-2, 1), and (2, 1)) Distances on the map are in miles. What is the
perimeter of Central Park? Show your work

answer: do you still need this?

72 is the answer to this problem

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116