1
The measure of Z1 =
![1 The measure of Z1 class=](https://us-static.z-dn.net/files/d22/ddf2970ee0650271fbd33cb8315959a7.png)
Answer:
∠1 = 90°
Step-by-step explanation:
The angle inscribed in a semicircle is always 90°
∠1 = 90°