90 degrees, a right triangle has 1 right angle which is 90 degrees
It looks like you had some of the numbers correct, but you just labeled it and rounded it incorrectly, and the teacher gave you super partial credit for it.
For my work, I'm assuming that side A is opposite of angle A and side B is opposite of angle B, etc...
Answer:
8+12f
hope this helps
have a good day :)
Step-by-step explanation:
I think it's true. I'm so sorry if it's wrong