Topics
10. Modeling in Two & Three Dimensions
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United States of AmericaTennessee
Geometry

10.01 Areas of circles and sectors

Lesson
Practice
Adaptive
Worksheet

Interactive practice questions

A circle has a radius of $4$4 mm.

What is the exact area of the circle?

Easy
< 1min

A circle has a radius of $12$12 mm.

Easy
1min

A circle has a radius of $47$47 cm.

Easy
1min

If the radius of the circle is $9$9 cm, find its area correct to two decimal places.

Easy
1min
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Outcomes

G.N.Q.A.1

Use units as a way to understand real-world problems.*

G.N.Q.A.1.A

Use appropriate quantities in formulas, converting units as necessary.

G.C.A.1

Use proportional relationships between the area of a circle and the area of a sector within the circle to solve problems in a real-world context.*

G.MP1

Make sense of problems and persevere in solving them.

G.MP3

Construct viable arguments and critique the reasoning of others.

G.MP4

Model with mathematics.

G.MP5

Use appropriate tools strategically.

G.MP6

Attend to precision.

G.MP7

Look for and make use of structure.

G.MP8

Look for and express regularity in repeated reasoning.

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