GED Practice

GED Math Review: Circumference and Area of Circles


Questions:

Directions: Choose or write the answer to each question.

Refer to the diagram below to answer questions 1 and 2.


  1. What is the area of the circle in m²?
    • 15.7
    • 31.4
    • 78.5
    • 314
  2. What is the circumference of the circle to the nearest tenth of a meter?
    • 15.7
    • 31.4
    • 78.5
    • 314

      Refer to the diagram to below to 3 and 4. The diameter of the smaller circle is equal to the radius of the larger circle.

  3. What is the area of the larger circle in cm²?
    • 25.12
    • 50.24
    • 200.96
    • 803.84
  4. What is the area of the shaded region in cm²?
    • 25.12
    • 37.68
    • 100.48
    • 150.72
      Refer to the diagram below to answer questions 5 and 6.

  5. What is the circumference of the smaller circle in inches?
    • 6.28
    • 12.56
    • 25.12
    • 50.24
  6. To the nearest inch, how much longer is the circumference of the large circle than the small circle?
    • 19
    • 18
    • 10
    • 9

  7. Marilyn needs to buy paint to cover the circular patio floor shown above. To calculate the amount of paint required for the job, she must first find the 
    of the patio using the calculation 
  8. Juan's bicycle tire has a diameter of 22 inches. If he wants to find the distance his wheel will travel in one full revolution, he would use  to calculate the
    of the tire in inches.
Answers:

  1. 78.5
  2. 31.4
  3. 200.96
  4. 150.72
  5. 25.12
  6. 19
  7. area; 3.14 x 7²
  8. 3.14 x 22







Reference:




Complete Test Preparation for the GED Test 2014 by Steck-Vaughn