Circles

Which equation would you use to find the area of a circle?

• πr²

• dπ

• 2r

• ½d

Which equation would you use to find circumference?

• πr²

• πd

• 2r

• ½d

What is the diameter of the circle?

• 3

• 6

• 9

• 12

What is the area of the circle rounded to the nearest tenth?

• 28.3 meters squared

• 28 meters squared

• 29 meters squared

• Answer Not Here

What is the radius of the circle?

• 2cm

• 5cm

• 10cm

• 20cm

What is the area of the circle rounded to the nearest tenth?

• 80 cm squared

• 79 cm squared

• 78.5 cm squared

• 78 cm squared

Find the circumference to the nearest foot?

• 231 feet squared

• 132 feet squared

• 321 feet squaed

• 123 feet squared

What is the circumference of the circle? Round to the nearest centimeter.

• 16 cm²

• 61 cm²

• 16 ft²

• 61 ft²

• 122.46 mi²
• 122. 45 mi²
• 175.84 mi²
• 175.85 mi²

The diagram below shows the dimensions of Mrs. Prothro’s new swimming pool. A cover is needed for the pool, what will be the approximate area of the cover?

• 720 ft²

• 580.92 ft²

• 592.83 ft²

• 238.5 ft²