Question

What is the perimeter of a polygon with the vertices at (-2,1),(-2,7),(1,11),(4,7) and (4,1) enter your answer in the box do not around any side lengths

Answer 1

28

Explanation:

It helps to plot the points on a graph. It is easy to see that three of the sides are of length 6, and the remaining two are the hypotenuse of a 3-4-5 triangle, hence length 5.

3×6 +2×5 = 28

The perimeter of this polygon is 28 units.