Solve triangle ABC:
B= 60 degrees, C= 90 degrees a= 4 feet
right triangle
30,60,90
sin A = 1/2 = 4/c
so c = 8
so b = sqrt(8^2-4^2) = 4 sqrt 3
B= 60 degrees, C= 90 degrees a= 4 feet
30,60,90
sin A = 1/2 = 4/c
so c = 8
so b = sqrt(8^2-4^2) = 4 sqrt 3