Finding Missing Lengths and Solving Perimeter Word Problems

The video tutorial covers the concept of perimeter, explaining how to calculate it for various shapes. It starts with a basic example using a triangle, then progresses to more complex problems involving unknown side lengths. The tutorial includes word problems, demonstrating how to apply perimeter calculations in real-life scenarios like fencing a garden or framing a picture. Key mathematical properties, such as the commutative property, are also discussed to aid in problem-solving.

What is the length of the last side of Jose's garden?

How much wood does Rachel need for the fourth side of her picture frame?

What steps do you take to find the missing length when the perimeter is known?