Area and Circumference of Circles

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius

The area of a circle is

• The measurement from an edge of a circle to another edge going through the center

• The measurement from the center of the circle to an edge of the circle

• the measurement of space inside the circle

• the measurement around the circle.

What is the radius of this circle?

• 18

• 9

• 36

• 6

Tags

CCSS.7.G.B.4

The circumference of a circle is

• The measurement from an edge of a circle to another edge going through the center

• The measurement from the center of the circle to an edge of the circle

• the measurement of space inside the circle

• the measurement around the circle.

Find the circumference of the circle in the image.

• 10π

• 20

• 20π

• 100π

Tags

CCSS.7.G.B.4

The diameter of a circle is 12 cm. What is the circumference?

• 37.68 cm

• 25.87 cm

• 90.54 cm

• 32.57 cm

Tags

CCSS.7.G.B.4

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?

• 31.25 m²

• 30.36 m²

• 29.55 m²

• 28.26 m²

Tags

CCSS.7.G.B.4

The radius of a circle is 5 inches. What is the circumference?

• 10π

• 10

• 12π

• 5

Tags

CCSS.7.G.B.4

Find the area of a circle.

• 200.01 cm squared

• 113.04 cm squared

• 150.23 cm squared

• 99.87 cm squared

Tags

CCSS.7.G.B.4