Have you ever before walked about the leaf of a college compound or a park? After completion of a totality round, the distance traveled by you will be specifically equal to the perimeter that the compound or the park.

You are watching: What is the perimeter of a pentagon

Therefore, the perimeter that a polygon is characterized as the complete distance around the outside of a polygon. The perimeter that a polygon is measure in meters, kilometers, yards, etc.

This write-up will display how to calculation the perimeter of polygon such as triangle, rectangle, square, parallelogram, rhombus, and also trapezoid. Us will additionally discuss the formulas because that calculating the perimeter of various polygons through examples.

How to find the Perimeter that a Polygon?

By definition, the perimeter of a polygon is calculation by acquisition the amount of all side lengths of a certain polygon. Girlfriend can also find the perimeter of every polygons, even if it is they are consistent or rarely often, rarely polygons.

For a regular polygon, the perimeter is equal to the product that one next length and also the variety of sides that the polygon.

Perimeter the a constant polygon = (length the one side) × number of sides

For example, the perimeter that a constant pentagon who side size 8 cm, is provided by;

Perimeter of a continual pentagon = 8 x 5 = 40 cm.

For an rarely often, rarely polygon, the perimeter is calculating by including together the individual next lengths.

For example, the perimeter of an rarely often rare pentagon whose next lengths are; 5 cm, 4 cm, 6 cm, 10 cm, and also 9 cm.

Perimeter = (5 + 4 + 6 + 10 + 9) cm

= 34 cm.

What is the formula for finding the perimeter of different polygons?

Different types of regular polygons have their own formulas for calculating perimeter. Let’s take a look.

Perimeter that triangles

The perimeter the a triangle is offered by;

P = a + b + c

For an equilateral triangle, the perimeter = 3a

Where a, b, and c room the three side lengths that a triangle.

See more: How Much Is 500 Grams In Ounces Conversion, 500 Grams Of Flour To Ounces Conversion

*
*
*
*
*

Solution

Perimeter = (4 + 11 + 10 + 30 + 10 + 11 + 4 + 11 + 10 + 30+ 10 + 11) mm

P = 152 mm

Practice Questions

What is the perimeter the a rectangle-shaped garden 15 meters long and 12 meter wide?Mike jogged ~ above the monitor of a park because that 14 minutes and covered a street of 3500 meters. If it takes 3 minute to finish one round of the track, what is the park’s perimeter? assume the track runs v the boundary of the park.

Answers