This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Maths Chapter 8 Introduction To Trigonometry – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Maths Chapter 8 Introduction To Trigonometry Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If cos A = 4/5, then tan A =? A) 3/5. B) 3/4. C) 4/3. D) 4/5. Show Answer Correct Answer: B) 3/4. 2. The value cot$^{2}$ 30$^\circ$-2cos$^{2}$ 60$^\circ$-3/4sec$^{2}$ 45$^\circ$-4sin$^{2 }$30$^\circ$ is A) 2. B) -1. C) 1. D) 0. Show Answer Correct Answer: D) 0. 3. State "TRUE" or "FALSE"sin A =1/sec A A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 4. The value of $\sin^230^0\-\\cos^230^0$ A) 1/2. B) -1/2. C) 3/2. D) -3/2. Show Answer Correct Answer: B) -1/2. 5. What is the ratio for Cosine? A) Opp/Hyp. B) Opp/Adj. C) Adj/Opp. D) Adj/Hyp. Show Answer Correct Answer: D) Adj/Hyp. 6. What is the cosine ratio? A) Opposite over Hypotenuse. B) Opposite over Adjacent. C) Adjacent over Hypotenuse. D) None of the above. Show Answer Correct Answer: C) Adjacent over Hypotenuse. 7. $\left(1-\cos^2\theta\right)\operatorname{cosec}^2\theta$ A) 0. B) 1. C) $\frac{1}{\sqrt{3}}$. D) 2. Show Answer Correct Answer: B) 1. 8. What is the reference angle for 275$^\circ$? A) 85$^\circ$. B) 95$^\circ$. C) -85$^\circ$. D) -95$^\circ$. Show Answer Correct Answer: A) 85$^\circ$. 9. Which is the trig function that relates the opposite side and the hypotenuse? A) Tangent. B) Sine. C) Cosine. D) All of the above. Show Answer Correct Answer: B) Sine. 10. Write this angle in degrees, minutes and seconds:18.62$^\circ$ A) 18$^\circ$ 62'. B) 18$^\circ$ 39'. C) 18$^\circ$ 11' 15". D) 18$^\circ$ 37' 12". Show Answer Correct Answer: D) 18$^\circ$ 37' 12". 11. What angle satisfies the ratio of the adjacent side to the hypotenuse A) Sine. B) Cosine. C) Tangent. D) All of the above. Show Answer Correct Answer: B) Cosine. 12. If cos (A + B) = 0, then sin (A-B) is reduced to ..... A) Stuff. B) Cos 2 B. C) Without a. D) Sin 2 B. Show Answer Correct Answer: B) Cos 2 B. 13. What is the ratio to find sine? A) $\sin\theta=\frac{Adj}{Opp}$. B) $\sin\theta=\frac{Adj}{Hyp}$. C) $\sin\theta=\frac{Opp^2}{Hyp^2}$. D) $\sin\theta=\frac{Opp}{Hyp}$. Show Answer Correct Answer: D) $\sin\theta=\frac{Opp}{Hyp}$. 14. If sin A + sin$^{2}$ A = 1, then cos$^{2}$ A + cos$^{4}$ A =? A) 0. B) 1. C) 2. D) 4. Show Answer Correct Answer: B) 1. 15. $\cos\frac{3}{5}$ $\theta$ A) $\frac{5}{3}$. B) 3 $\frac{4}{3}$. C) $\frac{5}{4}$. D) $\frac{5}{13}$. Show Answer Correct Answer: A) $\frac{5}{3}$. 16. If $\Delta ABC$ A) 0. B) 1. C) $\frac{1}{2}$. D) $\frac{\sqrt{3}}{2}$. Show Answer Correct Answer: A) 0. 17. If tan A = $\frac{5}{12}$ A) $\frac{13}{17}$. B) $\frac{17}{13}$. C) $\frac{12}{5}$. D) $\frac{25}{169}$. Show Answer Correct Answer: B) $\frac{17}{13}$. 18. The trigonometric ratios of an acute angle in a right angled triangle express the relationships between the angle and the lengths of the sides of the triangle. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. If $\tan\theta=\frac{-1}{\sqrt[]{2}}$ $\theta$ $\operatorname{cosec}\theta.$ A) $\frac{\sqrt[]{6}}{2}$. B) $\frac{\sqrt[]{6}}{3}$. C) $-\sqrt[]{3}$. D) $\frac{\sqrt[]{3}}{3}$. Show Answer Correct Answer: C) $-\sqrt[]{3}$. 20. If sin a = 8/17, The value of seca thing + things what is A) 23/8. B) 15/8. C) 8/15. D) 6/23. Show Answer Correct Answer: A) 23/8. 21. If sinA =1, then cos A is ..... A) 0. B) 1. C) All the above. D) None of the above. Show Answer Correct Answer: A) 0. 22. Sin30=? A) 1. B) $\sqrt{\frac{1}{4}}$. C) $\sqrt{3}$. D) $\frac{\sqrt{2}}{2}$. Show Answer Correct Answer: B) $\sqrt{\frac{1}{4}}$. 23. What is the sine ratio? A) Opposite over Hypotenuse. B) Adjacent over Hypotenuse. C) Opposite over Adjacent. D) None of the above. Show Answer Correct Answer: A) Opposite over Hypotenuse. 24. Sin 2B = 2 sin B is true when B is equal to A) $90^0$. B) $60^0$. C) $0^0$. D) $30^0$. Show Answer Correct Answer: C) $0^0$. 25. Value of (sin30$^\circ$ + cos30$^\circ$)-(sin 60$^\circ$ + cos60$^\circ$) is A) -1. B) 0. C) 1. D) 2. Show Answer Correct Answer: B) 0. ← PreviousNext →Related QuizzesClass 10 Maths Chapter 8 Introduction To Trigonometry Quiz 1Class 10 Maths Chapter 8 Introduction To Trigonometry Quiz 2Class 10 Maths Chapter 8 Introduction To Trigonometry Quiz 3Class 10 Maths Chapter 8 Introduction To Trigonometry Quiz 4Class 10 Maths Chapter 8 Introduction To Trigonometry Quiz 6Class 10 Economics Chapter 1 Development QuizClass 10 Economics Chapter 2 Sectors Of The Indian Economy QuizClass 10 Economics Chapter 3 Money And Credit QuizClass 10 Economics Chapter 4 Globalisation And The Indian Economy QuizClass 10 Economics Chapter 5 Consumer Rights QuizClass 10 English Chapter 1 A Letter To God QuizClass 10 English Chapter 10 The Sermon At Benares QuizClass 10 English Chapter 11 The Proposal QuizClass 10 English Chapter 3 Two Stories About Flying QuizClass 10 English Chapter 4 From The Diary Of Anne Frank QuizClass 10 English Chapter 5 And 6 The Hundred Dresses QuizClass 10 English Chapter 7 Glimpses Of India QuizClass 10 English Chapter 8 Mijbil The Otter QuizClass 10 English Chapter 9 Madam Rides The Bus QuizClass 10 English Poem Chapter 1 Dust Of Snow QuizClass 10 English Poem Chapter 10 The Tale Of Custard The Dragon QuizClass 10 English Poem Chapter 11 For Anne Gregory QuizClass 10 English Poem Chapter 2 Fire And Ice QuizClass 10 English Poem Chapter 3 A Tiger In The Zoo QuizClass 10 English Poem Chapter 4 How To Tell Wild Animals QuizClass 10 English Poem Chapter 5 The Ball Poem QuizClass 10 English Poem Chapter 6 Amanda! QuizClass 10 English Poem Chapter 7 Animals QuizClass 10 English Poem Chapter 8 The Trees QuizClass 10 English Supplementary Chapter 1 A Triumph Of Surgery QuizClass 10 English Supplementary Chapter 2 The Thief’S Story QuizClass 10 English Supplementary Chapter 3 The Midnight Visitor QuizClass 10 English Supplementary Chapter 4 A Question Of Trust QuizClass 10 English Supplementary Chapter 5 Footprints Without Feet QuizClass 10 English Supplementary Chapter 6 The Making Of A Scientist QuizClass 10 English Supplementary Chapter 7 The Necklace QuizClass 10 English Supplementary Chapter 8 Bholi QuizClass 10 English Supplementary Chapter 9 The Book That Saved The Earth QuizClass 10 Geography Chapter 1 Resources And Development QuizClass 10 Geography Chapter 2 Forest And Wildlife Resources QuizClass 10 Geography Chapter 3 Water Resources QuizClass 10 Geography Chapter 4 Agriculture QuizClass 10 Geography Chapter 5 Minerals And Energy Resources QuizClass 10 Geography Chapter 6 Manufacturing Industries QuizClass 10 Geography Chapter 7 Lifelines Of National Economy QuizClass 10 History Chapter 1 The Rise Of Nationalism In Europe QuizClass 10 History Chapter 2 Nationalism In India QuizClass 10 History Chapter 3 The Making Of A Global World QuizClass 10 History Chapter 4 The Age Of Industrialization QuizClass 10 History Chapter 5 Print Culture And The Modern World QuizClass 10 Maths Chapter 10 Circles QuizClass 10 Maths Chapter 11 Constructions QuizClass 10 Maths Chapter 12 Areas Related To Circles QuizClass 10 Maths Chapter 14 Statistics QuizClass 10 Maths Chapter 15 Probability QuizClass 10 Maths Chapter 2 Polynomials QuizClass 10 Maths Chapter 3 Pair Of Linear Equations In Two Variables QuizClass 10 Maths Chapter 4 Quadratic Equations QuizClass 10 Maths Chapter 5 Arithmetic Progressions QuizClass 10 Maths Chapter 6 Triangles QuizClass 10 Maths Chapter 7 Coordinate Geometry QuizClass 10 Maths Chapter 9 Some Applications Of Trigonometry QuizClass 10 Political Science Chapter 1 Power Sharing QuizClass 10 Political Science Chapter 2 Federalism QuizClass 10 Political Science Chapter 3 Democracy And Diversity QuizClass 10 Political Science Chapter 4 Gender, Religion And Caste QuizClass 10 Political Science Chapter 5 Popular Movements QuizClass 10 Political Science Chapter 5 Popular Struggles QuizClass 10 Political Science Chapter 6 Political Parties QuizClass 10 Political Science Chapter 7 Outcomes Of Democracy QuizClass 10 Political Science Chapter 8 Challenges To Democracy QuizClass 10 Science Chapter 1 Chemical Reactions And Equations QuizClass 10 Science Chapter 10 Light Reflection And Refraction QuizClass 10 Science Chapter 11 The Human Eye And The Colourful World QuizClass 10 Science Chapter 12 Electricity QuizClass 10 Science Chapter 13 Magnetic Effects Of Electric Current QuizClass 10 Science Chapter 14 Sources Of Energy QuizClass 10 Science Chapter 15 Our Environment QuizClass 10 Science Chapter 16 Management Of Natural Resources QuizClass 10 Science Chapter 2 Acids, Bases And Salts QuizClass 10 Science Chapter 3 Metals And Non Metals QuizClass 10 Science Chapter 4 Carbon And Its Compounds QuizClass 10 Science Chapter 5 Periodic Classification Of Elements QuizClass 10 Science Chapter 6 Life Processes QuizClass 10 Science Chapter 7 Control And Coordination QuizClass 10 Science Chapter 8 How Do Organisms Reproduce QuizClass 10 Science Chapter 9 Heredity And Evolution QuizClass 10 English Chapter 2 Nelson Mandela QuizClass 10 English Poem Chapter 9 Fog QuizClass 10 English Supplementary Chapter 10 The Hack Driver QuizClass 10 Maths Chapter 13 Surface Areas And Volumes QuizClass 10 Maths Chapter 1 Real Numbers Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books