Class 9 Mathematics Quiz Chapter 7adminAugust 9, 2022CBSE Class 9 Chapter 7 – Triangles Play the below Class 9 Mathematics Quiz Chapter 7 – Triangles. These questions are very important for examination. We have provided a quiz from each chapter of class 9 Mathematics NCERT book. Check it on our website. 1. If the angles of a triangle are in the ratio 3:2:1 then the measure of the largest angle is (A) 60° (B) 30° (C) 90° (D) 180° 2. If the bisectors of the acute angle of a right angle triangle meet at O, then the angle at O between the two bisectors is (A) 90° (B) 45° (C) 60° (D) 135° 3. If , then is isosceles with (A) (B) (C) (D) None of these 4. In the given figure, the measure of is, (A) 50° (B) 40° (C) 100° (D) 80° 5. ABC is an isosceles triangle such that AB = AC and AD is the median to the base BC. Then (A) 55° (B) 70° (C) 35° (D) 110° 6. If , then (A) (B) (C) (D) 7. D, E, F are the mid points of the sides BC, CA and AB respectively of . Then is congruent to (A) (B) (C) (D) 8. ABCD is a parallelogram. If the two diagonals are equal, find the measure of (A) 120° (B) 60° (C) 90° (D) 100° 9. If and AB = 5cm, and , Then which of the following is true (A) (B) (C) (D) 10. In a , if AB = AC and BC is produced to O such that , then (A) 20° (B) 40° (C) 60° (D) 80° Check Score Click here