Its equally distant from the endpoints of the segment to find the center of the following rotation
Step-by-step explanation:
I hope it's correct...
The second number in an ordered pair is the y-coordinate and corresponds to a number on the y-axis.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Sum of the interior angles of any triangle is 180° .
Thus ;
![y + 48° + 90° = 180°](https://tex.z-dn.net/?f=y%20%2B%2048%C2%B0%20%2B%2090%C2%B0%20%3D%20180%C2%B0)
![y + 138° = 180°](https://tex.z-dn.net/?f=y%20%2B%20138%C2%B0%20%3D%20180%C2%B0)
Subtract sides 138°
![y + 138° - 138° = 180° - 138° \\](https://tex.z-dn.net/?f=y%20%2B%20138%C2%B0%20-%20138%C2%B0%20%3D%20180%C2%B0%20-%20138%C2%B0%20%5C%5C%20)
![y = 42°](https://tex.z-dn.net/?f=y%20%3D%2042%C2%B0)
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️