How do you find the area and perimeter of a pentagon?

Answer 1

Since the question does not say so, you may not assume that the pentagon is regular.

One way to find the area is to select any point inside the pentagon and join it to each of the vertices. This will divide the pentagon into 5 triangles. You can then measure the sides of each triangle and thereby calculate its area. Then sum the areas of the triangles.

You could also select one side in each triangle as the base and then draw and measure the perpendicular distance to the opposite vertex. That is another way to find the area of each triangle. There are other methods, too.

To find the perimeter you will need to measure the length of each side of the pentagon and add these lengths together.