Mom, what's a perimeter?

Need a little refresher? Think of a fence or even a border when you need to explain what a perimeter is. Talking about it in those terms might be easier to understand than saying that a perimeter is the boundary line or the area immediately inside the boundary or defining it as a circumference.

Then go to Mrs. Glosser's Math Goodies to get diagrammed examples of how to find perimeters for all sorts of different shapes, complete with commonly used formulas. Scroll down the page, and you'll find exercises to try.

Here's one: can you find the perimeter of a triangle with sides measuring 10 inches, 14 inches and 15 inches? Type your answer in the Answer Box on Mrs. Glosser's Math Goodies page and press ENTER.

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