Question

Find the perimeter of the shape with the following coordinates J(-3, 4), K(-1, 6), L(1, 1), and M(-1, 3)

9.4 units
11.5 units
13.3 units
15 units

Answer 1

13.3 units

Explanation:

If you solve it using the distance formula, you get the following:

JK = 2.82

JM = 2.23

ML = 2.82

KL = 5.385

If you add those all together, you get the total perimeter, which = 13.255 ≈ 13.3 units.

Answer 2

My graphing app says the perimeter is 11.04 +2.24 ≈ 13.3 units, corresponding to the 3rd selection.