Question

a. two different central angles ∠boc, ∠doc
b. a minor arc
c. a major arc
c. a semi - circle
c. two different chords
f. the central angle subtended by (widehat{ad}) ∠aod
use your protractor to help you find the following measures
g. the measure of (widehat{ac})
h. the measure of (widehat{de})

Explanation:

Step1: Recall arc - measure relationship

The measure of an arc is equal to the measure of its central angle. To find the measure of arc $\overset{\frown}{AC}$, we need to measure the central angle $\angle AOC$ with a protractor.

Step2: Recall arc - measure relationship for $\overset{\frown}{DE}$

The measure of arc $\overset{\frown}{DE}$ is equal to the measure of its central angle $\angle DOE$. Use a protractor to measure $\angle DOE$.

Answer:

g. Measure $\angle AOC$ with a protractor to get the measure of $\overset{\frown}{AC}$.
h. Measure $\angle DOE$ with a protractor to get the measure of $\overset{\frown}{DE}$.