Question

what is the measure of this angle? m∠abc = ？°

Explanation:

Step1: Identify starting - point

The ray BC aligns with 0°.

Step2: Identify ending - point

The ray BA aligns with 240°.

Step3: Calculate angle measure

The measure of ∠ABC is the difference between the two readings. Since we start from 0° and end at 240°, m∠ABC = 240°.

Answer:

240