This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Maths Chapter 6 Triangles – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Maths Chapter 6 Triangles Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In a right angle triangle, the angles other than the right angle are A) Obtuse. B) Right angle. C) Acute. D) Straight. Show Answer Correct Answer: C) Acute. 2. ABC is an equilateral triangle of side a. Length of each of its altitudes is? A) $\frac{\sqrt{3}}{4}\\a^2$. B) $\frac{\sqrt{3}}{2}a$. C) $\frac{\sqrt{3}}{2}a^2$. D) $\frac{\sqrt{3}}{4}a$. Show Answer Correct Answer: B) $\frac{\sqrt{3}}{2}a$. 3. Which of the following triplets cannot be the angles of a triangle? A) 67$^\circ$, 51$^\circ$, 62$^\circ$. B) 70$^\circ$, 83$^\circ$, 27$^\circ$. C) 90$^\circ$, 70$^\circ$, 20$^\circ$. D) 40$^\circ$, 132$^\circ$, 18$^\circ$. Show Answer Correct Answer: D) 40$^\circ$, 132$^\circ$, 18$^\circ$. 4. Which of the following is NOT true about similar figures? A) Similar figures always have the same shape. B) Similar figures always have the same size. C) Similar figures always have corresponding angles that are equal. D) Similar figures always have corresponding sides that are proportional. Show Answer Correct Answer: B) Similar figures always have the same size. 5. Basic proportionality theorem is known as A) Pythagoras theorem. B) Area theorem. C) None of the above. D) Thale's theorem. Show Answer Correct Answer: D) Thale's theorem. 6. In shop class, you made a square table. If the diagonal of the table measures 42 inches, how big is the table on each side? A) 36.3730 ft. B) 29.6984 ft. C) 6.4807 ft. D) 59.3969 ft. Show Answer Correct Answer: B) 29.6984 ft. 7. A triangle whose all the three sides are of different length is called ..... triangle A) Scalene. B) Isosceles. C) Right angled. D) Equilateral. Show Answer Correct Answer: A) Scalene. 8. Congruent triangles have the exact same size and shape. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. The height of an equilateral triangle of side 5 cm is: A) 4.33 cm. B) 5 cm. C) 4 cm. D) 3.9 cm. Show Answer Correct Answer: A) 4.33 cm. 10. The basketball court in the neighbor's driveway is 15 feet long and has an area of 165 feet$^{2 }$. What is the width of a basketball court? A) 15 feet. B) 10 feet. C) 180 feet. D) 11 feet. Show Answer Correct Answer: D) 11 feet. 11. Can the following 3 numbers be side measures of a triangle2, 15, 16 A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 12. Which one of the following is not a criterion for congruence of two triangles? A) ASA. B) SSA. C) SAS. D) SSS. Show Answer Correct Answer: B) SSA. 13. In a ..... triangle one angle is exactly 90 degrees. A) Acute. B) Right. C) Obtuse. D) 360 degrees. Show Answer Correct Answer: B) Right. 14. D and E are the midpoints of side AB and AC of a triangle ABC, respectively and BC = 6 cm. If DE || BC, then the length (in cm) of DE is: A) 2.5. B) 3. C) 5. D) 6. Show Answer Correct Answer: B) 3. 15. What is the standard form of the number 1000 + 300 + 50 + 7 A) 10 357. B) 1305. C) 1357. D) 13 507. Show Answer Correct Answer: C) 1357. 16. Is Angle-Angle-Angle (AAA), a valid rule for proving triangles congruent? A) No. B) Sometimes. C) Yes. D) N/A. Show Answer Correct Answer: A) No. 17. What is a 4 sided shape called? A) Square. B) Parallelogram. C) Quadrilateral. D) Rhombus. Show Answer Correct Answer: C) Quadrilateral. 18. The angles opposite to equal sides of a triangle are: A) Equal. B) Unequal. C) Supplementary angles. D) Complementary angles. Show Answer Correct Answer: A) Equal. 19. In an equilateral triangle measure of each angle is A) 90 degrees. B) 80 degrees. C) 60 degrees. D) 25 degrees. Show Answer Correct Answer: C) 60 degrees. 20. The sum of the lengths of any two sides of a triangle is ..... than the third side. A) Greater than. B) Less than. C) Equal to. D) None of the above. Show Answer Correct Answer: A) Greater than. 21. What are the three ways to classify triangles by their sides? A) Equilateral, right, isosceles. B) Scalene, obtuse, right. C) Equilateral, isosceles, scalene. D) Acute, right, isosceles. Show Answer Correct Answer: C) Equilateral, isosceles, scalene. 22. Classify the triangle whose sides are:4 cm, 4 cm and 7 cm. A) Scalene. B) Isosceles. C) Equilateral. D) Right. Show Answer Correct Answer: B) Isosceles. 23. Can the following 3 numbers be side measures of a triangle10, 18, 10 A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 24. If the two legs of a right angled triangle are equal and the square of the hypotenuse is 100 then the length of each leg is A) 10. B) $5\sqrt{2}$. C) $10\sqrt{2}$. D) None. Show Answer Correct Answer: B) $5\sqrt{2}$. 25. Let ABC is a right angle triangle at B. If AB = 5 cm and BC = 12 cm then the length of AC is A) 5 cm. B) 10 cm. C) 12 cm. D) 13 cm. Show Answer Correct Answer: D) 13 cm. ← PreviousNext →Related QuizzesClass 10 Maths Chapter 6 Triangles Quiz 1Class 10 Maths Chapter 6 Triangles Quiz 2Class 10 Maths Chapter 6 Triangles Quiz 3Class 10 Maths Chapter 6 Triangles Quiz 4Class 10 Maths Chapter 6 Triangles Quiz 5Class 10 Maths Chapter 6 Triangles Quiz 6Class 10 Maths Chapter 6 Triangles Quiz 7Class 10 Maths Chapter 6 Triangles Quiz 8Class 10 Maths Chapter 6 Triangles Quiz 9Class 10 Maths Chapter 6 Triangles Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books