THE-TRIGOMETRIC-RATIO-1-Q.pdf - 1 The Trigometric Ratio 1 1 2 3 Given sin(90 a = \u00bd find without using trigonometric tables the value of cos a(2mks 24

THE-TRIGOMETRIC-RATIO-1-Q.pdf - 1 The Trigometric Ratio 1 1...

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1. The Trigometric Ratio 1 1. Given sin(90 - a) = ½ , find without using trigonometric tables the value of cos a (2mks) 2. If 45 24 tan ,find without using tables or calculator, the value of sin cos cos tan (3 marks) 3. At point A, David observed the top of a tall building at an angle of 30 o . After walking for 100meters towards the foot of the building he stopped at point B where he observed it again at an angle of 60 o . Find the height of the building 4. Find the value of , given that ½ sin = 0.35 for 0 o ≤ θ ≤ 360 o 5. A man walks from point A towards the foot of a tall building 240 m away. After covering 180m, he observes that the angle of elevation of the top of the building is 45 o . Determine the angle of elevation of the top of the building from A 6. The table below gives a field book showing the results of a survey of a section of a piece of land between A and E. All measurements are in metres. D 33 C 21 B 42 E 95 90 70 30 25 A F 36 G 25 H 40 (a) Draw a sketch of the land.
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