Answer:
1 is 45. 14 is 90
Step-by-step explanation:
42+123+x=180
x=180-165
x=15 degrees
I think u can add 3.48 15 times
the angle between the known sides is not right angle
(2x−y)(2)−(2x+y)(2)=4xyk
4kxy = -4y
4kxy/4xy = -4/4xy
k = -1/x
