Answer:
127 degrees
Step-by-step explanation:
96+31+x=180
x=53
180-53=m<1
127m<1
10.8
By sine rule:
-1,2
12.04
add 8 and 9 by the power of two: 8^2+9^2
that equals to 145
find the square root of 145 and that equals to 12.04