NCERT Solutions for class 10 Maths Chapter 9 Some applications of Trigonometry Exercise 9.1 in English available for Medium and Hindi Medium in PDF. Toppr Nation is providing free CBSE Board & UP Board study material for class 1 to 12. Our NCERT Solutions and Study material like Lab Manual, HOTs, VBQs, and CBSE study notes are free to download. In this chapter students will learn about Some applications of Trigonometry.
Class 10 Maths Solutions – Some Applications of Trigonometry
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NCERT 10 Maths Chapter 9 Exercise 9.1 Solutions
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प्रश्नावली 9.1 Solutions in Hindi
NCERT English Solution for class 10
Know More About Trigonometry
Dear students, In the previous chapter, you have learnt about trigonometric ratios. Now in this chapter, you will be studying about some ways in which trigonometry is used in the life around you. Trigonometry is one of the most ancient subjects studied by scholars all over the world. As you know that we have said in Chapter 8, trigonometry was invented because its need arose in astronomy. Since then the astronomers have used it, for instance, to calculate distances from the Earth to the planets and stars. Trigonometry is also used in geography and in navigation. In the present or past time the knowledge of trigonometry is used to construct maps, determine the position of an island in relation to the longitudes and latitudes.
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You should this fact that Surveyors have used trigonometry for centuries. One such large surveying project of the nineteenth century was the ‘Great Trigonometric Survey’ of British India for which the two largest-ever theodolites were built. During the survey in 1852, the highest mountain in the world was discovered. From a distance of over 160 km, the peak was observed from six different stations. In 1856, this peak was named after Sir George Everest, who had commissioned and first used the giant theodolites (see the figure alongside). The theodolites are now on display in the Museum of the Survey of India in Dehradun. NCERT Solutions for class 10 Maths Chapter 9 Exercise 9.1 in English Medium.