kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 5 - Mathematics
7.19 Circle Problems

  1. The radius of a circle is half the diameter.
  2. The area of a circle is given by pi x r2. square units.( r is the radius and pi = 3.14)
  3. The perimeter of a circle is the circumference.
  4. The circumference of a circle is given by C = 2 x pi x r units.
Example: The radius of a circle is 5 cm. Find the area.
Area = pi x r2
Area = 3.14 x 5 x 5
Answer: 78.5 sq cm


Directions: Answer the following questions. Also write at least ten examples of your own.
Q 1: If the radius of the circle is 10 cm, what is its diameter?
20 cm
5 cm
20 m

Q 2: The circumference of a circle is 47.1 inches. What is the area of the circle?
70.7 square inches
706.5 square inches
176.625 square inches
147.894 square inches

Q 3: If the diameter of the circle is 25 cm, what is its radius?
125 cm
12.5 cm
1.25 cm
18

Q 4: A circle has a radius of 3 feet. What is the area of the circle?
28.26 square feet
188 square feet
9.32 square feet
18.84 square feet

Q 5: If the circumference of a circle is 62.8 centimeters, what is the area?
350.7 square centimeters
197.192 square centimeters
3140 square centimeters
313.72 square centimeters

Q 6: Find the circumference of a circle with a diameter of 13 centimeters to the nearest tenth of a centimeter.
42.9
55.1
40.8

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


Subscription to kwizNET Learning System offers the following benefits:

  • Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
  • Instant scoring of online quizzes
  • Progress tracking and award certificates to keep your student motivated
  • Unlimited practice with auto-generated 'WIZ MATH' quizzes
  • Child-friendly website with no advertisements
  • Choice of Math, English, Science, & Social Studies Curriculums
  • Excellent value for K-12 and ACT, SAT, & TOEFL Test Preparation
  • Get discount offers by sending an email to discounts@kwiznet.com

Quiz Timer