Your teacher will give your group two circles of different sizes.
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For each circle,
- Use the grid squares to determine the diameter of the circle.
- Estimate the area of the circle.
- Record your measurements in the first two rows of the table.
diameter (cm) estimated area (cm2) -
Plot your diameter and area values on the coordinate plane. What do you notice?
A coordinate plane with the origin labeled O. The horizontal axis is labeled "diameter, in centimeters," and the numbers 5 through 25, in increments of 5, are indicated. The vertical axis is labeled "area, in square centimeters, and the numbers 50 through 300, in increments of 50, are indicated. - Find out the measurements from another group that measured different circles. Record their values in your table, and plot them on your same coordinate plane.
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Earlier, you graphed the relationship between the diameter and circumference of a circle. How is this graph the same? How is it different?