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Area and perimeter
Rectangles are common shapes that you will often find the need to compare. Who has a bigger poster size? Whose yard has more grass to mow? We'll learn about length, width, area, and perimeter--about all you need to know to begin comparing!
If you know the perimeter and the length of a rectangle, you can figure out the width. Don't believe us? Watch and become a believer.
If you know the area and perimeter of a rectangle, you can figure out the length and width. STILL don't believe us?Just watch.
We know the length and width of two rectangles. Guess what? We can compare the areas!
Find the area of rectangles and squares when given side lengths. Find the side length of a square when given the area.
Find the missing side length of a rectangle when given its perimeter or area. Compare perimeters and areas of rectangles.