1. Find the circumference of a circle with a diameter of 11 cm to the nearest hundredth. Measurement formula C = pi x diameter

a. 34.54 cm ***
b. 17.27 cm
c. 5.5 cm
d. 33 cm

2. Which of the following is an irrational number?

a. square root 144
b. 0.25
c. square root 17 ***
d. 0.02

3. A circular clock face has a diameter of 7 inches. What is the area of the clock face? Round to the nearest tenth.

a. 38.5 in.^2 ***
b. 11 in.^2
c. 49 in.^2
d. 153.9 in.^2