The angle of elevation of the top of a tower of height h meter at point Q is θ. If the distance between point Q and base of the tower is equal to the height of the tower, find the value of θ?
| Question | The angle of elevation of the top of a tower of height h meter at point Q is θ. If the distance between point Q and base of the tower is equal to the height of the tower, find the value of θ? | |
| Type | multiple_choice | |
| Option | 60° | incorrect |
| Option | 30° | incorrect |
| Option | 45° | correct |
| Option | any acute angle | incorrect |
Let the height of tower PR be h.
PQ = h as point Q is at a distance of h meter from the base of tower.
tan θ=1 tanθ= 45° ( Option C)