The angle of elevation of the top of a hill from the foot of a tower is \( 60^{\circ} \) and the...

Channel:
PW Solutions
Subscribers:
482,000
Published on ● Video Link: https://www.youtube.com/watch?v=dOj8XdYtDQ8


Duration: 5:31
4 views
0

The angle of elevation of the top of a hill from the foot of a tower is \( 60^{\circ} \) and the angle of elevation of the top of the tower from the for hill is \( 30^{\circ} \). If the tower is \( 50 \mathrm{~m} \) high, then what is the height of the hill?
(a) \( 180 \mathrm{~m} \)
(b) \( 150 \mathrm{~m} \)
(c) \( 100 \mathrm{~m} \)
(d) \( 120 \mathrm{~m} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-10-26A circus artist climbs from the ground along a rope which is stretched from the top of a vertica...
2022-10-26The following sentences are the steps involved in proving the result \( \frac{\cos x}{1-\tan x}+...
2022-10-26There is a small island in the river which is 100 \( m \) wide and a tall tree stands on the isl...
2022-10-26The angles of depression of the top and the bottom of a \( 7 \mathrm{~m} \) tall building from t...
2022-10-26If \( \tan 86^{\circ}=m, \operatorname{then} \frac{\tan 176^{\circ}+\cot 4^{\circ}}{m+\tan 4^{\c...
2022-10-26\[ \frac{1-\cos \theta}{\sin \theta}+\frac{\sin \theta}{1-\cos \theta}= \] (a) \( 2 \sin \theta ...
2022-10-26\( \sqrt{-4+\sqrt{8+16 \operatorname{cosec}^{4} \alpha \sin ^{4} \alpha}}= \) (a) \( \operatorna...
2022-10-26\( \tan 38^{\circ}-\cot 22^{\circ}= \) (a) \( \frac{1}{2} \operatorname{cosec} 38^{\circ} \sec 2...
2022-10-26\( \sin ^{2} 2^{\circ}+\sin ^{2} 4^{\circ}+\sin ^{2} 6^{\circ}+\cdots+\sin ^{2} 90^{\circ}= \) (...
2022-10-26A straight highway leads to the foot of a tower of height \( 50 \mathrm{~m} \). From the top of ...
2022-10-26The angle of elevation of the top of a hill from the foot of a tower is \( 60^{\circ} \) and the...
2022-10-26If \( A B C D \) is a cyclic quadrilateral, then the value of \( \cos ^{2} A-\cos ^{2} B-\cos ^{...
2022-10-26The length of the side (in \( \mathrm{cm} \) ) of an equilateral triangle inscribed in a circle ...
2022-10-26\[ \frac{\sin \theta+\cos \theta}{\sin \theta-\cos \theta}+\frac{\sin \theta-\cos \theta}{\sin \...
2022-10-26The length of minute hand of a wall clock is \( 12 \mathrm{~cm} \). Find the distance covered by...
2022-10-26If \( \frac{\sin ^{2} \alpha-3 \sin \alpha+2}{\cos ^{2} \alpha}=1 \), then \( \alpha \) can be (...
2022-10-26If \( \sin \theta-\cos \theta=\frac{3}{5} \), then \( \sin \theta \cos \theta= \) (a) \( \frac{1...
2022-10-26If \( x=a(\operatorname{cosec} \theta+\cot \theta) \) and \( y=b(\cot \theta-\operatorname{cosec...
2022-10-26If \( \frac{1+\sin \alpha}{1-\sin \alpha}=\frac{m^{2}}{n^{2}} \), then \( \sin \alpha \) is (a) ...
2022-10-26If \( 2 \sin \alpha+3 \cos \alpha=2 \), then \( 3 \sin \alpha-2 \cos \) \( \alpha= \) (a) \( \pm...
2022-10-26If \( \cot A=\frac{5}{12} \) and \( A \) is not in the first quadrant, then \( \frac{\sin A-\cos...


Tags:
pw