Thinking about area and perimeter separately
Perimeter measures a boundary; area measures a surface. A larger perimeter does not always mean a larger area. Begin by separating length units from square units.
Try it yourself first.
Compare a rectangle with sides 3 cm and 8 cm and a square with sides 5 cm. Calculate each area and perimeter.
View the solution or example answer
The rectangle has area 24 cm² and perimeter 22 cm. The square has area 25 cm² and perimeter 20 cm. The larger perimeter belongs to the smaller area.
Your next step.
Put results in a two-column table. Before choosing a formula, explain whether the question asks about the surface or the boundary.
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