Lesson: polygons and perimeter

squares and rectangles

1. define perimeter.

2. write the formula for the perimeter of a square. tell what the variables represent.

3. write two formulas for the perimeter of a rectangle. tell what the variables represent.

4. could you use a formula for the perimeter of a rectangle to find the perimeter of a square? could you use the formula for the perimeter of a square to find the perimeter of a rectangle? explain.

other polygons

1. what formula could you write to find the perimeter of a pentagon in which each side is a different length?

2. what formula could you write for a quadrilateral with four different side lengths?

3. do you need to write a formula to find the perimeter of a polygon?

4. name a benefit of writing a formula to find the perimeter of a polygon.