What is the perimeter of square efgh, shown?

a. 14.1
b. 28.3
c. 34.5
d. 17.3

B. 28.3

Step-by-step explanation:

Because this is a square, you just need to find the length of one side.

Let us pick one side:

Line EF

The coordinates of the two points of Line EF are (0,5) and (5,0)

The distance formula between two points is:

So we just fill in the formula and solve:

Now that we have that, we just multiply it by 4.

7.07 units x 4 = 28.28 units or 28.3 units