What are the dimensions of the largest rectangular pen Ted can make for his pony?

Find the length and width of a rectangle.

Compare a rectangle’s area when its length and width are changed.

Find pairs of triangular numbers whose sum is a square number.

What rectangle can you form that is close in shape to a square?

Find the possible areas of a rectangle that is formed from a larger integral rectangle.

Given the perimeter of a rectangle, find its area.

How far does Paul walk to get a drink of water?

What is the perimeter of a rectangle formed from an equilateral triangle?

Explore the relationship between length and area.