Circumference and Area of a Circle

If a diameter is 20 inches, what is a radius?

• 20 inches

• 10 inches

• 20 inches

Tags

CCSS.7.G.B.4

If my radius is 15ft, what is my diameter?

• 30ft

• 15ft

• 7.5ft

Tags

CCSS.7.G.B.4

What is the area of this circle ?

• 452.4 cm 

• 113.1 cm

• 18.8 cm

Tags

CCSS.7.G.B.4

Find the circumference of a circle with a radius of 12.5 mm .

• 157.1mm

• 39.3mm

• 78.5mm

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?

• 9.4 m²

• 113.1 m²

• 28.3 m²

Tags

CCSS.7.G.B.4

The ring has a diameter of 3.5 feet. What is the ring's circumference ?

• 8.6 ft

• 22 ft

• 11 ft

Tags

CCSS.7.G.B.4

The London Eye has a diameter of 120 meters. If you are sitting in one of the capsules, about how far do you travel in one rotation of the Ferris wheel?

• 188.5 m

• 754 m

• 377 m

Tags

CCSS.7.G.B.4

How much grass is needed to fill the entire circular lawn?

• 4,418 steps²
• 117 steps²

• 17,671 steps²

Tags

CCSS.7.G.B.4

The radius of a tire is 13 inches. How much lighting do I need to decorate one tire?

• 40.8 inches

• 81.7 inches

• 163.4 inches

Tags

CCSS.7.G.B.4

Find the area of the composite figure.

• 100

• 178.5

• 139.3