Circle O is shown. Line segments C O And A O are radii. Lines are drawn from points C and A to point B to form chords B C and B A. Angle C B A is 80 degrees. What is the measure of angle COA? 140° 150° 160° 170°

Respuesta :

Answer:

Its 160 on ED

Step-by-step explanation:

Based on the angle-arc relationship, the measure of angle COA is: C. 160°.

What is the Angle-Arc Relationship?

The angle-arc relationship relates the measure of an inscribed angle to its central angle, such that the central angle is twice the measure of the intercepted arc.

Given:

  • m∠CBA = 80° (intercepted arc)
  • m∠COA = ?° (central angle)

Therefore:

m∠COA = 2(m∠CBA)

Substitute

m∠COA = 2(80°)

m∠COA = 160°

Therefore, based on the angle-arc relationship, the measure of angle COA is: C. 160°.

Learn more about angle-arc relationship on:

https://brainly.com/question/25889947

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