The angle of elevation of the top of a hill from a point is `alpha`. After walking b metres towards the top up of a slope inclined at an angle `beta` to the horizon, the angle of elevation of the top becomes `gamma`. Then , the height of the hill is

The angle of elevation of the top of a hill from a point is alpha . After walking b metres towards the top up a slope inclined at an angle beta to the horizontal,the angle of elevation of the top becomes gamma .Then the height of the hill is :

A person observes the angle of elevation of the peak of a hill from a station to be alpha. He walks c metres along a slope inclined at the angle beta and finds the angle of elevation of the peak of the hill to be gamma. Show that the height of the peak above the ground is (c sin alpha sin(gamma-beta))/(sin(gamma-alpha))

A person observes the angle of elevation of the peak of a hill from a station to be alpha . He walks c metres along a slope inclined at the angle beta and finds the angle of elevation of the peak of the hill to be gamma .Show that the height of the peak above the ground is (c sinalphasin(gamma-beta))/(sin(gamma-alpha))

The angle of elevation of the top of a hill from a point on the horizontal planes passing through the foot of the hill is found to be 45^(@) . After walking a distance of 80 meters towards the top , up a slope inclined at an angle of 30^(@) to the horizontal plane , the angle of elevation of the top of the hill becomes 75^(@) . Then the height of the hill ( in meters ) is _________

The angle of elevation of the top of a tower from a point P on the ground is alpha . After walking a distance of d m towards the foot of the tower, the angle of elevation of the top of the tower is found to be beta . Then, ………..holds good.

The angle of elevation of the top of a tower standing on a horizontal plane from a point A is alpha. After walking a distance d towards the foot of the tower the angle of elevation is found to be beta. The height of the tower is____