1. What is a circumference?
A. The distance around the circle
B. The total square units inside the circle
C. A line segment extending from the center
D. A close plane figure made up of points equidistant from the center
2. Which of the following statements is NOT true?
A. Circle is named by its arc.
B. Diameter is the longest chord
C. Radius is a line segment extending from the center.
D. Chord is a straight line joining two points on a circle.
3. A circle has a radius of 5.2 inches, what is its circumference?
A. 3.2 in B. 32.656 in C. 32.566 in D. 35.256 in
4. If the radius of a circle is 18 cm, what is its diameter?
A. 24 cm B. 30 cm C. 32 cm D. 36 cm
5. What is the radius of a circle whose diameter is 15 cm?
A. 7.5 cm B. 15 cm C. 25 cm D. 30 cm
6. What is the circumference of a circle if it has a diameter of 18 cm?
A. 52.52 cm B. 55. 62 cm C. 56. 52 cm D. 65.51 cm
7. What is the formula in getting the circumference if the diameter is given?
A. C = 2 r B. C = 2 d C. C = d D. C = rd
8. What is the circumference of the circle at the right?
A. 60.28 cm C. 42.50 cm
B. 50.24 cm D. 24. 50 cm
9. A circular horse enclosure has a diameter of 22 meters. What is the
length of the fence used for it?
A. 6.908 m B. 60.98 m C. 69.08 m D. 69.80 m
10. Hannah walked across a circular swimming pool and it is 10 feet
across the center. How far will Hannah swim around the pool?
A. 3.14 ft B. 31.4 ft C. 314 ft D. 3140 f