Trigonometry XI
Introduction - Trigonometry is that branch of mathematics which deals with the measurement of sides and angles of triangle..
Heights and Distances
Introduction - The height of a building or the width of a river can be measured without climbing or crossing it. In this chapter we will show how it is made possible. Some suitable angles and distances will be measured to achieve the above result..
Right Angled Triangles Index
Introduction - When calculating sides or angles of right angled triangles, it is easiest to use the appropriate trigonometric relation. Finding the value of trigonometric ratios from the tables is learnt easily. Nowadays of course calculators are able to give accurate values for any degre..
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