Circles and measurement:
Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.
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Know the formulas for the area and circumference of a circle and use them to solve problems.
Understand and describe the relationships among the radius, diameter, and circumference of a circle.
Understand and describe the relationship among the radius, diameter, and area of a circle.
Know that a circle is a two-dimensional shape created by connecting all of the points equidistant from a fixed point called the center of the circle.
Give an informal derivation of the relationship between the circumference and area of a circle.