Exercise 9. You cy download these solutions in PDF from the above link. A circus artist is climbing a 20 m long rope, which is tightly stretched and tied from the top of a vertical pole to the ground. The distance between the foot of the tree to the point where the top touches the ground is 8 m. Find the height of the tree.
You can also download the free PDF of Ex 9. A contractor plans to install two slides for the children to play in a park. For the children below the age of 5 years, she prefers to have a slide whose top is at a height of 1. What should be the length of the slide in each case? Find the height of the tower. A kite is flying at a height of 60 m above the ground. The string attached to the kite is temporarily tied to a point on the ground.
Find the length of the string, assuming that there is no slack in the string. Find the distance he walked towards the building. Matgs statue, 1. Find the height of the pedestal. If the tower is 50 m high, find the height of the building. Two poles of equal heights are standing opposite each other on either side of the road, which is Byjus Learning App Class 12 Maths Zip 80 m wide.
Find the height of the poles and the distance of the point from the poles. A TV tower stands vertically on a bank of a canal. Find the mathss of the tower and the width of the CD and 20 m from pole AB. Determine the height of the clasz. If one ship is mahhs behind the other on the same side of the lighthouse, find the distance between the two ships. Find the class 10 maths ch 9 ex 9.1 ep travelled by the balloon during the interval.
A straight highway leads to the foot of a tower. Find the time taken by the car to reach the foot of the tower from this point. The angles of elevation of the top of a tower class 10 maths ch 9 ex 9.1 ep two points at a distance of 4 m and 9 m from the base of the tower and in the same straight line with it are complementary.
Prove that the height of the tower is 6 m. The height or length of an object or the distance between two distinct objects can be determined with the help of trigonometric ratios. The observer is looking at the top of the pole. The angle BAC, so formed by the line of sight with the horizontal, is called the angle of elevation of the top of the pole from the eye Ncert Solutions For Class 10th Maths Chapter 12 of an observer.
In the above figure, the line AC, is the line of sight as the observer is looking downwards from the top of the building at A towards the object at C. From the above figure, if we want to find the height CD class 10 maths ch 9 ex 9.1 ep the pole without actually measuring it, we need the following information: i Class 10 maths ch 9 ex 9.1 ep ED of the observer from the pole. Assuming that the above three conditions are known we can determine the height of the pole in the following way.
By adding AE to BC, you will get the height of the pole. Some Applications of Trigonometry Class 10 Ex 9. Solution: Ex 9. Angle of Depression In the above figure, the line AC, is the line of sight as the observer is looking downwards claass the top of the building at A towards the object at C. RD Sharma Class 12 Solutions. Watch Youtube Videos.
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