Answer:
You should use photomath.
Step-by-step explanation:
It's an app where you take a picture of your math problem, and It answers it!
the first part isn't 90, it's 180.
the whole circle is 360, half of 360 is 180
an acute angle is any angle less than 90 degrees.
Answer:
-3,6
Step-by-step explanation:
i think this is right
