Answer:
if you have a pic i may know what you are talking about better and i will try to help you
Step-by-step explanation:
if you are talking about a missing angle of a right triangle i can tell you how to do that
Top is 5 the middle is 10 the bottom is 6
The answer is 15. 37 plus 18 equals to 55 and 22 plus 18 equals to 40. 55 minus 40 equals to 15.
