Area of Circles

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121π cm²

A toy car has wheels that have a 22 cm diameter. EXACTLY how much space does the wheel take up?

25π m²

Find the exact area of a circle with a diameter of 10 m.

9π cm²

Find the exact area of a circle with a radius of 3 cm.

498.76 in²

How much space is inside of a circle with a radius of 12.6 inches? Round your answer to the nearest hundredth.

169π in²

How much space is inside of a circle with a radius of 13 inches?

Circumference

If I tell you the distance around a circle, what information did I give you?

Area

If I tell you to find the space inside a circle, what am I asking you to find?

19 in

The circumference of a circle is 119.3 inches. We would like use the formula A=πr² to find this circle's area. Therefore, we need the circles radius to plug in! What is the circles radius (round to nearest whole)?

7 in

The circumference of a circle is 14π in. What is the length of the radius?

144π m²

The circumference of a circle is 24π m. What is the area of the circle?

196π ft²

The circumference of a circle is 28π ft. What is the area of the circle?

38 cm

The circumference of a circle is 38π cm. What is the length of the diameter?

5π m

What is the distance around a circle with a diameter of 5 meters? Express your answer in terms of π.

30π feet

What is the exact length around a merry go round with a radius of 15 feet?


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