7.GM.4a
Demonstrate an understanding of the proportional relationships between diameter, radius, and circumference of a circle.
Example Problems
The radius of a circle is 2 units.
What is its circumference?
Use 3.14 for π.
What is its circumference?
Use 3.14 for π.
The diameter of a circle is units.
What is the radius of the circle?
What is the radius of the circle?
The radius of a circle is .
What is the diameter of the circle?
What is the diameter of the circle?
Khan Academy ResourcesArea of circles reviewCircumference reviewRadius, diameter, & circumferenceRadius and diameterArea of a circleCircumference of parts of circlesArea of parts of circlesArea and circumference of circles challengeRadius, diameter, circumference & πArea of a circleLabeling parts of a circleImpact of increasing the radiusArea of a shaded regionRadius & diameter from circumference

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