Draw a perpendicular line with BC from A
The line will bisect BC, and is angle A's bisector.
Call the point that bisects BC with the line is D => DAC=DAB=1/2 angle A
=> DC = 1/2*BC = 2m
=> sinDAC = DC/AC = 2/7
=> angle DAC = sin^-1(2/7) = 16.6 degrees
=> angle A = 2*DAC = 16.6 * 2 = 33.2 degrees (approx. 33 degrees)
Conclusion: B) Angle A is 33 degrees
lol ez
