What is the definition of perimeter?
Perimeter is the distance around the outside of a shape. It is measured by adding the lengths of all sides of a shape. Perimeter is also known as Linear Perimeter.
What is Perimeter?
perimeter: The length of the boundary of a two-dimensional shape. linear perimeter: The length of the boundary of a two-dimensional figure when all its sides are straight lines. shape: A two-dimensional area enclosed by lines.
What is the best way to learn about perimeter?
- Practicing solving problems
- Reading a book about perimeter
- Talking to a math teacher
- Making a model of the perimeter
The perimeter of a circle is called its circumference. The perimeter of an equilateral triangle is three times the length of one side. The longest measured perimeter in the world is that of the Great Barrier Reef in Australia.
Draw / write: What shapes can you think of that have a perimeter?
Draw / write: Can you think of any real-world examples of why it is important to know how to calculate the perimeter of different shapes?
What strategies did you use to calculate the perimeter of the shapes?
How could you use the perimeter of a shape to solve a problem?