Tiwari Academy Discussion

Amaira

Asked: October 30, 2020In: Class 9

The angle of elevation of the top of a building from the foot of the tower is 30° and the angle of elevation of the top of the tower from the foot of the building is 60°. If the tower is 50 m high, find the height of the building.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:204 Questions No:9

Amaira

Asked: October 30, 2020In: Class 9

Two poles of equal heights are standing opposite each other on either side of the road, which is 80 m wide. From a point between them on the road, the angles of elevation of the top of the poles are 60° and 30°, respectively. Find the height of the poles and the distances of the point from the poles.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:204 Questions No:10

Amaira

Asked: October 30, 2020In: Class 9

A TV tower stands vertically on a bank of a canal. From a point on the other bank directly opposite the tower, the angle of elevation of the top of the tower is 60°. From another point 20 m away from this point on the line joing this point to the foot of the tower, the angle of elevation of the top of the tower is 30° Find the height of the tower and the width of the canal.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:204 Questions No:11

Amaira

Asked: October 30, 2020In: Class 10

From the top of a 7 m high building, the angle of elevation of the top of a cable tower is 60° and the angle of depression of its foot is 45°. Determine the height of the tower.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:204 Questions No:12

Amaira

Asked: October 30, 2020In: Class 10

As observed from the top of a 75 m high lighthouse from the sea-level, the angles of depression of two ships are 30° and 45°. If one ship is exactly behind the other on the same side of the lighthouse, find the distance between the two ships.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:204 Questions No:13

Amaira

Asked: October 30, 2020In: Class 10

A 1.2 m tall girl spots a balloon moving with the wind in a horizontal line at a height of 88.2 m from the ground. The angle of elevation of the balloon from the eyes of the girl at any instant is 60°. After some time, the angle of elevation reduces to 30° Find the distance travelled by the balloon during the interval.

NCERT Solutions for Class 10 Maths Chapter 1 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:205 Questions No:14

Amaira

Asked: October 30, 2020In: Class 10

A straight highway leads to the foot of a tower. A man standing at the top of the tower observes a car at an angle of depression of 30°, which is approaching the foot of the tower with a uniform speed. Six seconds later, the angle of depression of the car is found to be 60°. Find the time taken by the car to reach the foot of the tower from this point.

NCERT Solutions for Class 10 Maths Chapter 1 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:205 Questions No:15

Kartik singh

Asked: October 30, 2020In: Class 10

Why is tossing a coin considered to be a fair way of deciding which team should get the ball at the beginning of a football game?

NCERT Solutions for Class 10 Maths Chapter 15 Important NCERT Questions PROBABILITY NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:205 Questions No:3

Poll

Kartik singh

Asked: October 30, 2020In: Class 10

Which of the following cannot be the probability of an event?

NCERT Solutions for Class 10 Maths Chapter 15 Important NCERT Questions PROBABILITY NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:308 Questions No:4

Kartik singh

Asked: October 30, 2020In: Class 10

If P(E) = 0.05, what is the probability of ‘not E’?

NCERT Solutions for Class 10 Maths Chapter 15 Important NCERT Questions PROBABILITY NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:308 Questions No:5

The angle of elevation of the top of a building from the foot of the tower is 30° and the angle of elevation of the top of the tower from the foot of the building is 60°. If the tower is 50 m high, find the height of the building.

From the top of a 7 m high building, the angle of elevation of the top of a cable tower is 60° and the angle of depression of its foot is 45°. Determine the height of the tower.

As observed from the top of a 75 m high lighthouse from the sea-level, the angles of depression of two ships are 30° and 45°. If one ship is exactly behind the other on the same side of the lighthouse, find the distance between the two ships.

Why is tossing a coin considered to be a fair way of deciding which team should get the ball at the beginning of a football game?

Which of the following cannot be the probability of an event?

If P(E) = 0.05, what is the probability of ‘not E’?

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