Area and Circumference Mainstream

Find the Circumference (round to nearest tenth):
diameter = 12 in.

• 37.7 in.
• 37 in.
• 38 in.
• 75.4 in.

Find the Circumference (round to nearest tenth):
diameter = 10 mi

• 31 mi
• 31.4 mi
  31.4 mi
• 31.5 mi
  31.5 mi
• 62.8 mi

Find the Circumference (round to nearest tenth):
diameter = 5 km

• 15.6 km
• 15 km
• 15.7 km
• 31.4 km

Find the Circumference (round to nearest tenth):
radius = 8 m

• 50.5 m
• 50 m
• 25.1 m
• 50.2 m

what is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm

What is the distance around a circle?

• Circumference
• Area
• Diameter
• Radius

Find the circumference (to the nearest whole number)

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

What two formulas can you use to find the circumference?

• C = π·d

• C = π·r²

• C = 2·π·r

• C = d²

Find the circumference of the circle.

• 14.13 cm

• 63.56 cm

• 28.26 cm

• 127.17 cm

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72