Question 183896
A = 1/2*B*H = 77 ---> B*H = 77*2 = 154
B = H + 3
(H+3)*H = 154
H^2 + 3H = 154
H^2 + 3H - 154 = 0
....quadratic eqn....
H = 11, -14
Can't be negative, H = 11
B = 11 + 3 = 14