Circles

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

• Diameter
• Radius

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

• Diameter
• Radius

What is the circumference of this circle?

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

Find the circumference of a circle with a diameter of 11 millimeters.

• 34.5 mm

• 30 mm

• 25.3 mm

• 34.5 cm

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

• 37.68mm

• 18.84mm

• 78.5mm

• none of the above

Find the circumference (to the nearest whole number)

• 88 in
• 44 in
• 116 square in
• None of the above

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

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

What is the area of this circle?

• 82.13
• 78.5
• 314.16
• 170.12

Find the area of the circle

• 56.52
• 254.34
• 1017.36
• 113.04