Circles Review

What is the area of this circle?

• 16π
• 8π
• 4π
• 16

What is the area of this circle?

• 4π

• 8π

• 16π

• π

What is the radius of a circle with an area of 49π?

• 49

• 10

• 7

• 14

What does "circumference" mean?

• Space a circle takes up
• Distance around a circle
• Line from one side of a circle to another
• Line from center of circle to side

The diameter of Carol's old records from the 80s is 12 inches. Which equation would help you determine the area?

• A = 12π
• A = 2π12
• A = π(12²)
• A = π(6²)

Tags

CCSS.7.G.B.4

find the area of the circle below.

• $6\pi$

• $81\pi$

• $3\pi$

• $9\pi$

What is the circumference of this circle? 

•  $6\pi$  

•  $12\pi$  

•  $24\pi$  

•  $144\pi$  

Find the arc length. Leave your answer in terms of π.

• 1.75π

• 3.5π

• 0.125π

• 45π

Find the length of the bold arc.Leave pi in your answer.

• 5688π ft
• 15.8π ft
• 150.4π ft
• 54,150 ft

Tags

CCSS.HSG.C.B.5

• arc length
• area of a sector
• area of a segment
• arc measure