Question

there are two poles on each on either bank of a river just opposite to each other one pole is 60 metre height from the top of the pole the angle of depression of the top and the foot of the other ball at 30 degree and 60 degree respectively find the width of the river and the height of the pole

Answer 1

Please make sure that the question is correct....

I have also solve such question. But in this question there are some mistake...