A. Directions: Read each item carefully. Write the letter of the best answer on a
separate answer sheet.
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1. What is the radius of a circle whose diameter is 6 cm?
a. 3 cm
b. 3.5 cm
c. 6 cm
d. 12 cm
hele whose diameter is 6
2. A circle's diameter is 10 cm. What is its radius?
a. 2.5
b. 5 cm
c. 10 cm
d. 20 cm
3. The side length of a square paper is 40 cm. What is the diameter of the
largest circle that can be drawn on the paper?
a. 5 cm
b. 10 cm
c. 20 cm
d. 40 cm
4. Which of these circles has a radius of 3 cm?
a. d = 4 cm
b. d = 5cm
c. d = 6 cm
b. d = 7 cm
5. Which of the following is an instrument used to draw a circle?
a compass
b. protractor
c. ruler
d. straight edge​