Area and Circumference

A diameter is _____ the radius of any circle.

• three times
• half
• two times
• one-third

What is π ? (Best Choice)

• The ratio of the circumference of any circle to its diameter.
• Exactly 3.14
• Exactly 3.1415
• Exactly 3.141593

Tags

CCSS.HSG.GMD.A.1

Twinkle, twinkle, little star, the circumference is

• 2 pi r
• Pi r square

Tags

CCSS.7.G.B.4

Fuzzy Wuzzy was a bear, area is 

• 2 pi r
• Pi r square

Tags

CCSS.7.G.B.4

2 times radius times pi is equal to 

• diameter times pi
• diameter squared times pi
• radius square times pi

Tags

CCSS.7.G.B.4

Which would you use to find the estimated area of the circle?.

• 3.14 times 12
• 3.14 times 12 times 12
• 3.14 times 24
• 3.14 times 24 times 24

Which would you use to find the estimated area of the circle?

• 3.14 times 6.2
• 3.14 times 6.2 times 6.2
• 3.14 times 3.1
• 3.14 times 3.1 times 3.1

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

Tags

CCSS.7.G.B.4

After taking part in a competition, Yahir received a bronze medal with a radius of 2.5 inches. What is the medal's diameter?

• 2.5 in
• 5 in
• 4 in
• 4.5 in

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