Radius, Circumference, and Area of Circles
Geometry, and more...
 
1. EASY

What is the diameter of sphere with radius \(1 km\)?

  1. \(3 km\)
  2. \(4 km\)
  3. \(0.5 km\)
  4. \(2 km\)
  5. \(1 km\)
 
2. EASY

A ball has a radius of \(3 cm\). What is the circumference of the ball?

  1. 16.77
  2. 19.28
  3. 15.63
  4. 18.85
  5. 18.55
 
3. EASY

What is the diameter of this circle?

  • 1
  • 2
  • 3
  • 6
  • 9
  •  
    4. EASY

    What is the area of a circle with circumference \(56 m\)?

    1. \(250 cm^2\)
    2. \(250 m^2\)
    3. \(260 cm^2\)
    4. \(240 cm^2\)
    5. \(255 m^2\)
     
    5. MEDIUM

    Andy is lost and rides his bike around in circles. He travels at \(3m/s\) and it takes him 2 minutes to go around the circle. What is the radius of the circle?

    1. \(55.6 m\)
    2. \(64.1 m\)
    3. \(84.5 m\)
    4. \(36.3 m\)
    5. \(57.3 m\)
     
    6. HARD

    On average, there are 3 pepperonis every \(10 cm^{2}\) of pizza. The side of a pizza slice is \(12 cm\) long. How many pepperonis are on the pizza?

    1. 136
    2. 135
    3. 139
    4. 134
    5. 137