The angle of elevation of the top of a tower from a point...
The angle of elevation of the top of a tower from a point on the horizontal ground, 40m away from the foot of the tower is 30o. Find the height of the tower.
20m
40√3m/3
20√3m
40√3m
60cm
Correct answer is B
\(\tan 30 = \frac{x}{40}\)
\(x = 40 \tan 30 = \frac{40}{\sqrt{3}}\)
= \(\frac{40\sqrt{3}}{3} m\)
Similar Questions
If 2x + 3y = 1 and x - 2y = 11, find (x + y) ...
Calculate the total surface area of a cone of height 12cm and base radius 5cm. [Take π = 22/7] ...
Evaluate 2700 000 x 0.03 ÷ 18 000 ...
Evaluate \(\frac{0.36 \times 5.4 \times 0.63}{4.2 \times 9.0 \times 2.4}\)...
Express 0.000834 in standard form ...
If the pass mark was 4. What percentage of the pupils failed the test? ...
Solve the equation 3x2 + 6x - 2 = 0 ...
Simplify (3/4 + 1/3) x 4(1/3) ÷ 3(1/4) ...
S = {1, 2, 3, 4, 5, 6}, T = {2,4,5,7} and R = {1,4, 5}, and (S∩T) ∪ R ...