Question

what is the perimeter​

Answer 1

Perimeter is the distance around the edge of a shape. Learn how to find the perimeter by adding up the side lengths of various shapes.

Answer 2

Answer:

Perimeter is the distance around the outside of a shape. For example, if you walk the distance around the edge of a playground, you are walking its perimeter.

Step-by-step explanation:

Lets explore how we can calculate the perimeter of these shapes:

Triangles

Rectangles

Regular Polygons

Circles

• Units

We write perimeter in the units we use to measure the shape. For example, if we measure in centimeters, we write the answer in centimeters. If we measure in miles, we write the answer in miles.

• Triangles

If we look at a triangle, we can see it is made up of three sides. Adding the length of the sides tells us the perimeter of the shape.

.Perimeter = 3 + 4 + 5

.Perimeter = 12 feet

• Rectangles

In a rectangle the opposite sides have equal lengths. If we add all four of the sides together we can calculate the perimeter.

.Perimeter = 8 + 8 + 6 + 6

.Perimeter = 28 feet

.perimeter rectangles

We can also calculate the perimeter of a rectangle using a formula:

.Perimeter = 2 × (Width + Height)

.Perimeter = 2 × (8 + 6)

.Perimeter = 2 × 14

.Perimeter = 28 feet