Finding Arc Measures and Arc Length

Find the measure of arc JM

• A
• B
• C
• D

What is the measure of arc AB?

• 140

• 142

• 180

• 153

If m stands for the measure of the central angle that intercepts the arc, then this is the formula for finding what?

• arc length

• area of a sector

• area of a segment

• arc measure

Find the red minor arc and its measure. Then find the blue major arc and its measure.

• AB, 135; ADB, 225

• ADB, 225; AB, 135

Find the red minor act and its measure. Then find the blue major arc and its measure.

• MN, 170; MPN 190

• MPN 190, MN 170

Choose all of the correct answers.

• BAC is a minor arc and its measure is 290 degrees

• ABC is a semicircle and its measure is 180 degrees

• EBD is a major arc and its measure is 315 degrees

• DC is a minor arc and its measure is 70 degrees

Identify each arc as a minor arc, major arc, or a semicircle. Then find its measure. BC

• major arc, 70

• minor arc, 70

• minor arc, 315

• minor arc, 315

Identify each arc as a minor arc, major arc, or a semicircle. Then find its measure. ED

• major arc, 45

• minor arc, 65

• minor arc, 290

• minor arc, 315

Find the m AE

• 196

• 257

• 105

• 103