A tower CB stands on a building AC, where `AC = CB` subtends an angle `beta` at a point P at a distance AP from foot A of the building and `AP = nAB` and C is the foot of the tower then `tanbeta=`

A chimney 20m high stands on top of a building. If the chimney subtends an angle of tan^(-1)(1/6) at a point on the ground which is 70m away from the foot of the building,then the height of the building is

A chimney 20m high stands on top of a building. If the chimney subtends an angle of tan^(-1)(1/6) at a point on the ground which is 70m away from the foot of the building,then the height of the building is

A chimney 20m high stands on top of a building. If the chimney subtends an angle of tan^(-1)(1/6) at a point on the ground which is 70m away from the foot of the building,then the height of the building is

A chimeny of 20 m height standing on the top of a building subtends an angle whose tangent is (1)/(6) at a distance of 70 m from the foot of the building, then the height of building is

A tower standing on a horizontal plane subtends a certain angle at a point 160 m apart from the foot of the tower. On advancing 100 m towards if, the tower is found to subtend an angle twice as before. The height of the tower is -

A tower standing on a horizontal plane subtends a certain angle at a point 160 m apart from the foot of the tower .On advancing 100 m towards it , the tower is found to subtend an angle twice as be fore .The height of the tower is

A tower of height b subtends an angle at a point 0 on the ground level through the foot of the tower and at a distance a from the foot of the tower. A pole mounted on the top of the tower also subtends an equal angle at 0. The height of the pole is