Problem 5: From the top of a building 30 m high, the top and bottom of a tower are observed to have angles of depression 30° and 45° respectively. Trigonometry Problems - sin, cos, tan, cot: Very Difficult Problems with Solutions These CBSE NCERT Class 10 Trigonometry workbooks and question banks have been made by teachers of StudiesToday for benefit of Class 10 students. The six primary trigonometric ratios are sine, cosine, tangent, secant, cosecant and cotangent. Class 10 Maths Chapter 8 Important Questions The above NCERT CBSE and KVS worksheets for Class 10 Trigonometry will help you to improve marks by clearing Trigonometry concepts and also improve problem solving skills. => BC = 51.96 m. So, the distance between the tree and the tower is 51.96 m.. They will come across many trigonometric formulas which will be used to solve numerical problems. 15 Important Questions. The whole trigonometry concept revolves around these ratios or sometimes also called functions. The angle of depressions is given 30° and 45° to the top and bottom of the tower. Ans: Introduction to Trigonometry of Class 10 Maths CBSE Book, will explain about trigonometry ratios which will teach you about sine, cosine, tangent, cosecant, secant, cotangent. Trigonometric ratios, trigonometric identities, trigonometric values of basic angles, trigonometric ratios of complementary angles. Extra Questions for Class 10 Maths Chapter 8 - Trigonometry. Find the height of the tower. The chapter also discusses the opposite and adjacent sides in a right-angled triangle, visualization of triangle ratios using a unit circle and trigonometric identities. Class 10, ICSE Board Problems, Trigonometrical Identities Class 10: Trigonometry – Board Problems Date: January 15, 2018 Author: ICSE CBSE ISC Board Mathematics Portal for Students 8 … CBSE Class 10 math Online Coaching by Maxtute. Solution: Let AB be the building and CD be the tower.. With video solution.