PowerPoint Presentation: Example 2. A tree stands vertically on the bank of a river. From a point on the other end directly opposite the tree, the angle of elevation of the top of the tree is 60⁰, from a point 20 metres behind this point on the same bank,the angle of elevation of the top of the tree is 30 ⁰.

Find the height of the tree and width of the river. (Take √3 = 1.732) Let PQ = h metres be the height of the tree. Let A be a point on the ground and B is another point on the ground which is 20m behind point A.

So BA = 20 mtr Then PAQ = 60⁰ Let AQ = x mtr be the width of the river 30⁰ 20 m P B A Q x 60⁰ h Solution. And PBQ = 30⁰. In right angled triangle PBQ: Example 3. As observed from the top of a light house, 100m above Sea level, the angle of depression of a ship, sailing towards it 30 ⁰ to 45 ⁰.

Determine the distance travelled by the ship during the period of observation. (Take √3 = 1.732) 30⁰ X P B A Q y 45⁰ 100 m 45⁰ 30⁰ X Horizontal Top of light house P is the top of the light house PQ. PQ = 100 m PX is horizontal line through P And PX AQ. So APX = PAQ = 30⁰ and BPX = PBQ = 45⁰ In right angled triangle PBQ PQ BQ Tan 45⁰. PowerPoint Presentation: An electric pole is 12 m high. A steel wire is tied from the top of the pole to a point on the ground to keep it upright. If the wire makes an angle of 60⁰ with the horizontal.

Then find the height of the pole (Take √3 = 1.732) Home Work 2. Two pillars of equal height are on either side of a road, which is 100m. At a point on the road between the pillars, the angle of elevation of the top of the pillars are 60⁰ and 30⁰ respectively. Find the position of the point between the pillars and height of each pillar.

Cbse board, ncert notes, download notes, class 10 notes, maths notes, download pdf maths note, maths notes download in pdf. Class X NCERT CBSE- authorSTREAM Presentation. Applications of Trigonometry: Applications of Trigonometry There is an enormous number of applications of. Download CBSE Important Questions for CBSE Class 10 Mathematics Some Applications of Trigonometry in PDF format. These cbse important questions are arranged subject.

Identifying the. Tan Ratio Ex 3.1 & Ex4. Artistic Anatomy By Dr Paul Richer Pdf Converter. 1. MIA Page 203. Starter Questions. Learning Intention. Success Criteria. Use tan of an angle to solve problems.

From the top of a 7 m high building, the angle of elevation of the top of a cable tower is 60⁰ and the angle of depression of its foot is 45⁰. Find the height of the tower.(Take √3 = 1.732).