MA.7.GR.1.4
Explore and apply a formula to find the area of a circle to solve mathematical and real-world problems.
Example Problems
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?
The radius of a circle is . What is the diameter of the circle?
Khan Academy ResourcesArea of a circleShaded areasArea of parts of circlesArea and circumference of circles challengeRadius, diameter, circumference & πArea of a circleImpact of increasing the radiusArea of a shaded regionRelating circumference and areaPartial circle area and arc lengthFinding circumference of a circle when given the area

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