The perimeter of squares, rectangles, triangles, and other non-circular shapes can be found by adding the sides together, too!
Perimeter & Circumference
Introduction
[size=150][color=#ff00ff]Perimeter [/color]is defined as the distance around a two-dimensional shape. [color=#0000ff]Circumference [/color]is what we call the perimeter of a circle. We can use [color=#ff00ff]perimeter [/color]and [color=#0000ff]circumference [color=#000000]to find the distances around everyday objects like houses, gardens, and pools.[br][br]In this worksheet you will find the [color=#ff00ff]perimeter [color=#000000]of different objects and you will see how the length of the radius of a circle affects the [color=#0000ff]circumference.[/color][/color][/color][/color][/color][/size]
Perimeter Formulas
Find the perimeter of...
Susie wants to plant a rectangular garden. The length of the garden will be 7 feet and the width will be 4.5 feet. What is the perimeter in feet?
Below is a circle with a marked center and a point on the circle. A'A (f) is the radius. Using the slider, you can adjust the size of the circle, which in turn, adjusts the [color=#0000ff]circumference[/color]. [br][br]Find the [color=#0000ff]circumference [color=#000000]if the ratio = 2.5.[/color][/color][br][br]If the ratio = 2, the radius = 2.78 units.
Circumference
Circumference
If the ratio = 2.5, what is the circumference of the circle?
Triangle Perimeter
Move the slider to adjust the lengths of the triangle. The increasing lengths will increase the perimeter value.[br][br]What is the perimeter of Triangle CDE when the ratio =-1.75?
Quiz
What is the formula for circumference of a circle?
Pool Perimeter
Jay wants to know the perimeter of his new pool. If the pool is a rectangle, and the width is 6 m and the length is 10 m, what is the perimeter?
Rachel's new puzzle is a square. One side length is 12 inches. What is the perimeter?