Geometry: Area and Circumference of Circles

#Geometry #grade7 Solve problems that involve finding the #area and #circumference of #circles. Based on Common Core standard #7.G.4

Which expression is used to determine the area of a circle?

π × r^2 π × d 2 × π × r
The radius of a circle is 6. What is the circle’s diameter?

3 6 12 36
What is the area of the circle, rounded to the nearest whole number?

13 20 39 123
What is the circumference of the circle?

7π inches 14π inches 49π inches 196π inches
What is the area of a circle that has a diameter of 10?

100π 25π 20π 10π
… and 7 more awesome questions! Check them out by clicking “Play”.