A man finds the angle of elevation of the top of a tower to be 30°. He walks 85 m nearer the tower and finds its angle of elevation to be 60°. What is the height of the tower?

 A man finds the angle of elevation of the top of a tower to be 30°. He walks 85 m nearer the tower and finds its angle of elevation to be 60°. What is the height of the tower?

A). 73.16 m

B). 73.31 m

C). 73.61 m

D). 76.31 m

---

Join Telegram Group

Answer This Question
Name:
Email:
Answer :
Sum of (1+2)
Submit:

Other Questions

1. \(\frac{{\cot {\rm{A\;}} + {\rm{\;}}\tan {\rm{B}}}}{{\cot {\rm{B\;}} + {\rm{\;}}\tan {\rm{A}}}}\) is equal to

2. A ladder leans against a vertical wall. Top of the ladder is 5 m above the ground. When the bottom of the ladder is moved 1 m further away from the wall, the top of the ladder rest against the foot of the wall. What is the length of the ladder?

3. From a point on a bridge across a river the angles of depression of the banks on opposite sides of the river are 60° and 45° respectively. If the bridge is at a height of 9 meter from the banks, find the width of the ricer.

4. What is the value of sin 300°?

5. If $7sin^{2}\theta + 3cos^{2}\theta$ = 4, $(0^{0} \leq \theta \leq 90^{0})$, then value of $\theta$ is

6. If tanA ­ tanB = X, then the value of X is

7. From the top and bottom of a pole QP, the angles of elevation of the peak of a temple TR are α and β respectively. If the height of the pole is P feet, then compute the height of the temple

8. What is the value of \(\frac{{cos\;40^\circ - cos\;140^\circ }}{{sin\;80^\circ + sin\;20^\circ }}?\)

9. A missile travels at 1278 km/h. How many metres does it travel in one second?

10. The top of two poles of height 24 m and 36 m are connected by a wire. If the wire makes an angle of $60^{0}$ with the horizontal, then the length of the wire is