Question

The image shows a circle centered at point O angle AOB Measures at 42 degrees.

Answer 1

Answer:

∠ ACB = 21°

Step-by-step explanation:

the inscribed angle ACB is half the central angle AOB , subtended by the same arc AB , then

∠ ACB = $\frac{1}{2}$ ∠ AOB = $\frac{1}{2}$ × 42° = 21°