Circles Review (Module 10)

Which of the follow is a radius that is not contained in the diameter of the circle?

• $\overline{DC}$

• $\overline{AB}$

• $\overline{CE}$

• $\overline{FC}$

Kira is building a fence around the circular field used for barrel racing at the rodeo. If the radius of the field is 45 ft, about how many feet of fencing does she need? (round to nearest ft)

• 70 ft

• 90 ft

• 142 ft

• 283 ft

The diameter of circle W is 48 cm, the diameter of circle Z is 72 cm, and YZ is 30 cm. What is WX?

• 18 cm

• 6 cm

• 24 cm

• 30 cm

What is the measure of Arc BK?

•  $90\degree$  

•  $42\degree$  

•  $138\degree$  

•  $52\degree$  

If the diameter of Circle C is 10 cm, find the length of Arc JB.

• 12.04 cm

• 6.02 cm

• $138\degree$

• $42\degree$

• True

• False

What is the length of MF?

• 12

• 3

• 14

• 24

Determine the measure of  $\angle W.$  

•  $60\degree$  

•  $59\degree$  

•  $12\degree$  

•  $118\degree$  

Determine the measure of  $\angle JMK$  and the measure of Arc ML.

•  $78\degree;\ 48\degree$  

•  $78\degree;\ 96\degree$  

•  $39\degree;\ 48\degree$  

•  $39\degree;\ 96\degree$  

If the four mirrors are placed at the points given, what is the measure of the angle formed at A?

• $79\degree$

• $16\degree$

• $180\degree$

• $49\degree$