Circumference and Area of a Circle

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

• Diameter
• Radius

Tags

CCSS.7.G.B.4

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.HSG.C.A.2

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

If you are given the diameter, how can you calculate the radius?

• Multiply the diameter by 2
• Divide the diameter by 2
• Add 2 to the diameter
• Subtract 2 from the diameter

Tags

CCSS.7.G.B.4

The radius of the circle is 9 meters.  What is the circle's circumference?

• 9 meters
• 28.26 meters
• 56.52 meters
• 18 meters

Tags

CCSS.7.G.B.4

What is the circumference of a circle with a radius of 54 m?

• 339.12 m
• 169.56 m
• 84.78 m 

Tags

CCSS.7.G.B.4

What is the circumference of this circle?  Round to the nearest tenth.

• 3.14 cm 
• 37.7 cm
• 24 cm
• 68.4 cm

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

find the area of the circle below.

• 100 cm
• 225 cm
• 9 cm
• 28.26 cm

Tags

CCSS.7.G.B.4

Shring's dining room table is round and has a radius of 4.5 feet. What is the tabletop's area?

• 63.585 ft²
• 68.345 ft²
• 64.585 ft²
• 61.345 ft²

Tags

CCSS.7.G.B.4