If the measure of arc ac is 160°, what is the measure of angle abc?

a. 80°

b. 40°

c. 60°

d. 20°

∠ABC = 80°

A is correct.

Step-by-step explanation:

If the measure of arc AC is 160°.

Angle subtended on circle is half the angle subtended at center on same arc.

Please refer the attachment for figure.

Therefore,

where, arc AC = 160°

Hence, the measure of ∠ABC is 80°

step-by-step explanation:

i believe its "c" because all of the other options include a but it could be d because there is a way of financing with cash at certain places but its uncommon.

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.