Finding the Measure of Arcs and Chords

What is the process in finding the measure of an angle formed by secants intersecting inside the circle?

• one-half the sum of the measures of the arc intercepted by the angle and its vertical angle pair

• one-half the sum of the measures of the arc intercepted by the angle and its intercepted arc

• twice the sum of the measures of the arc intercepted by the angle and its vertical angle pair

• twice the sum of the measures of the arc intercepted by the angle and its intercepted arc

Find the measure of minor arc AV.

• 55°

• 115°

• 85°

• 95°

What is the m∠C?

• 50

• 25

• 100

• 55

What is the formula to use when solving for interior arcs/angles in circles with intersecting chords?

Determine the measure of ∠NOP

• 15°

• 20°

• 40°

• 50°

Find the measure of the arc or angle indicated. Assume that lines which appear tangent are tangent.

• 36

• 35

• 30

• 41

Find the measure of angle ABD.

• 14

• 51

• 37

• 65

• 4
• 5
• 6
• 8

• 10

• 16

• 12

• 19

Find m∠UST.

• 119°

• 163°

• 44°

• 61°