Question

the angle of elevation of the top of a tower from two points A and B at distances of d and 4d respectively from the base of the tower and in the same straight line with it are complementary prove that the height of the tower is 2d​

Answer 1

Answer:

2d

Step-by-step explanation:

h²=(d*tand)(4d*tan4d)

now two angles are complementary

then tandtan4d equals to 1