A 308 degree B 241 degree C 1251 degree A 1251 degree B

A = 30.8 degree, B = 24.1 degree, C = 125.1 degree A = 125.1 degree, B = 30.8 degree, C = 24.1 degree A = 30.8 degree, B = 125.1 degree, C = 24.1 degree A = 125.1 degree, B = 24.1 degree C = 30.8 degree

Solution

x = 5, y = 8, z = 4

A = arccos((x² + z² - y²)/2xz) = 125.1
B = arccos((y² + z² - x²)/2yz) = 30.8
C = arccos((x² + y² - z²)/2xy) = 24.1

Option B) is correct