\( \mathrm{PQR} \) is a triangular park with \( \mathrm{PQ}=\mathrm{PR}=100 \mathrm{~m} \). A cl...

Channel:
PW Solutions
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=nMzRb1P28M8


Duration: 9:00
9 views
0

\( \mathrm{PQR} \) is a triangular park with \( \mathrm{PQ}=\mathrm{PR}=100 \mathrm{~m} \).
A clock tower is situated at the mid point of \( \mathrm{QR} \).
The angles of elevation of the top of the tower at \( P \) and \( Q \) are \( \cot ^{-1} \) (3.2) and \( \operatorname{cosec}^{-1} \) (2.6) respectively. Find the height of the clock tower.
a. \( 13 \mathrm{~m} \)
b. \( 25 \mathrm{~m} \)
c. \( 75 \mathrm{~m} \)
d. None of these
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-07-14Fill in the blanks There are exactly two tangents to a circle passing through a point lying the ...
2023-07-14Fill in the blanks is a line that intersects a circle at two points.
2023-07-14Fill in the blanks Two circles having different radius can intersect each other at maximum points.
2023-07-14A boy stands at a point \( \mathrm{M} \) and makes an angle of \( 30^{\circ} \) with the top of ...
2023-07-14Over a tower PQ of height \( \mathrm{h} \) metres there is a flagstaff \( \mathrm{QR} \). PQ and...
2023-07-14Fill in the blanks The tangents which are drawn at the ends of a diameter of a circle are
2023-07-14The angle of elevation of an airplane from a point on the ground is \( 60^{\circ} \). After a fl...
2023-07-14The angle of elevation of the top B of a vertical tower \( \mathrm{AB} \) from a point \( \mathr...
2023-07-14From a cliff the angles of depression of the top and bottoin of \( 8 \mathrm{~m} \) tall tower a...
2023-07-14A chimney leans towards north, \( \alpha \) and \( \beta \) be its angles of elevation respectiv...
2023-07-14\( \mathrm{PQR} \) is a triangular park with \( \mathrm{PQ}=\mathrm{PR}=100 \mathrm{~m} \). A cl...
2023-07-14If a flag staff which is \( 6 \mathrm{~m} \) high is placed on the top of a tower, casts a shado...
2023-07-14A flag-staff which is \( 5 \mathrm{~m} \) high stands on a building having a height of \( 25 \ma...
2023-07-14From the top of a tower \( 60 \mathrm{~m} \) high, the angles of depression of the top and the b...
2023-07-14The angle of elevation of the top of the tower observed from each of the three points \( \mathrm...
2023-07-14From the top of a pole 32 meters high, the angle of elevation of the top of a tower is \( 45^{\c...
2023-07-14Many upgradations has been evolved in the aviation technology in the last few years. Speed, dire...
2023-07-14Many upgradations has been evolved in the aviation technology in the last few years. Speed, dire...
2023-07-14Many upgradations has been evolved in the aviation technology in the last few years. Speed, dire...
2023-07-14A girl runs to save an injured cat stuck on a window frame which is \( 20 \mathrm{~m} \) above t...
2023-07-14A girl runs to save an injured cat stuck on a window frame which is \( 20 \mathrm{~m} \) above t...