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A square centimeter is the area of a square that is 1 centimeter long on each side. This is 1 square centimeter.
- Find the area in square centimeters of these two shapes.
- This shape has curved sides. Professor Peabody estimated its area. He counted whole square centimeters and matched smaller pieces with one another to estimate whole squares.
- How many whole squares did he count?
- Find the two pieces he “put together” to make square number 15. Do you agree they make about a whole square centimeter?
- What is Professor Peabody's estimate for the area?
Use the Check Each Other page in the Student Activity Book to practice finding the area of shapes with curved sides.