Circumference & Area of Mixed Shapes

What is the circumference of a circle with a diameter of 19.1 ft? 

• 60.00 ft
• 35.17 ft
• 28.67 ft
• 47.17 ft

The diameter of a truck wheel is 56.5 inches. What is the circumference of the wheel?

• 177.49 inches
• 167.41 inches
• 157.41 inches
• 187.41 inches

What is the circumference of a circle with a radius of 21 cm?

• 131.88 cm
• 121.99 cm
• 111.89 cm
• 141.89 cm

What is the circumference of a circle with a diameter of 56 m?

• 175.8 m
• 176.8 m
• 165.8 m
• 186.8 m

What is the radius?

• 18
• 72
• 38
• 14

What is the circumference?

• 48
• 96
• 24
• 18

What is the diameter?

• 5 in
• 10 in
• 3.14 in
• 15.84 in

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

• Radius
• Diameter

The distance halfway across the circle is called the...

• radius
• diameter
• circumference
• area

A circle has a diameter of 36 ft. What is the radius?

• 18

• 72

• 14