Help ASAP and EXPLAIN!!!!!!!
![Help ASAP and EXPLAIN class=](https://us-static.z-dn.net/files/ddb/006d69e35d117baa43a9fdb51585fb10.png)
Answer:
the last one
Step-by-step explanation:
follow the lines in the order of the letters. look at each corner showering that the angle = 90°. the last option is the only one that proves that it is a right angle.
hope this helps