Answer:
m(arc ZWY) = 305°
Explanation:
8). Formula for the angle formed outside the circle by the intersection of two tangents or two secants is,
Angle formed by two tangents =

=

=

= 40°
9). Following the same rule as above,
Angle formed between two tangents =

125 =
![(1)/(2)[m(\text{major arc})-m(\text{minor arc})]](https://img.qammunity.org/2022/formulas/mathematics/college/79j1rkbuk92pits4e2g3cdgz64yy34f1br.png)
250 =
![[m(\text{arc ZWY})-m(\text{arc ZY})]](https://img.qammunity.org/2022/formulas/mathematics/college/1jazkb0lm7entfz8703yfvkfb5tkptlei2.png)
250 = m(arc ZWY) - 55
m(arc ZWY) = 305°
Therefore, measure of arc ZWY = 305° will be the answer.
10). m(arc BAC) =
![(1)/(2)([m(\text{arc BDC})-m(\text{arc BC})])](https://img.qammunity.org/2022/formulas/mathematics/college/yr1z91fd6z6e0walo3saq5rgnlr4q9ue3c.png)
=

=

= 74°