Circles and conic sections

Find the measure of the missing arc (?).

• 98^o

• 140^o

• 85^o

• 94^o

Find the length 'a' of the arc that subtends a central angle of measure 3 rad in a circle of radius 5 cm.

• 9 cm

• 15 cm

• 25 cm

• 20 cm

Find the length of the bold arc.

• 5.95 yd

• 18.7 yd

• 11.9 yd

• 37.4 yd

Choose all of the correct answers.

• EAB is a major arc and its measure is 180 degrees

• EAB is a semicircle and its measure is 180 degrees

• ABC is a is a semicircle and its measure is 180 degrees

• DC is a minor arc and its measure is 65

Find the measure of Arc BD in degrees.

• 180

• 52

• 90

• 360

Find the length of the bold arc. Leave your answer in terms of pi.

Find the arc length of the bolded arc in the picture.

• A
• B
• C
• D

What is the measure of Arc AB in the figure?

• 45⁰

• 60⁰

• 90⁰

• 180⁰

If the measure of arc ABC = 210°, what is the measure of arc AC?

• 150°
• 100°
• 210°
• 105°

Find the arc length indicated by the bolded arc.

• 8.3 in

• 7.2 in

• 6.8 in

• 6.4 in