Area and circumference of a Circle

Which best represents the circumference of a circle with a radius of 12 inches?

• 37.68 inches

• 75.36 inches

• 62.14 inches

• 27.14 inches

Tags

CCSS.7.G.B.4

Which best represents the area of a circle with a radius of 8 inches?

• 200.96 inches

• 50.24 inches

• 192.14 inches

• 31.4 inches

Tags

CCSS.7.G.B.4

If my radius is 10ft, what is my diameter?

• 20ft
• 5ft
• 31.4ft
• 62.8ft

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
• 29.55 m²
• 30.36 m²
• 28.26 m²

Tags

CCSS.7.G.B.4

Does 7 inches represent the diameter or radius of the circle?

• Diameter

• Radius

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference?

• 11.32 ft

• 12.25 ft

• 10.99 ft

• 8.75 ft

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 163.24 cm²

• 15.32 cm²

• 124.24 cm²

• 113.04 cm²

Tags

CCSS.7.G.B.4

What formula is this used for:
πd

• Area
• Circumference 
• Surface Area
• Volume 

Tags

CCSS.7.G.B.4

What formula is this used for:
πr²

• Circumference 
• Area
• Surface Area
• Volume

Tags

CCSS.7.G.B.4

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

Tags

CCSS.7.G.B.4