# Lines and Angles/ MCQ/CBSE Class 9 Mathematics.

**Lines and Angles – Chapter 6/MCQ/CBSE Class 9 Mathematics is about the Multiple Choice Questions that you can expect for Yearly Examination. Here you can find out practice problems for Class 9 Mathematics.**

**Lines and Angles – Chapter 6/MCQ/CBSE Class 9 MathematicsExtra Questions for Practice/ MCQ WorksheetChoose the correct answer from the options given below:**

**Triangle PQR is right angled at Q and PQ = QR. Find the angle measure of angle P?**

A. 45

B. 35

C. 75

Answer: 45 degree**In a triangle ABC, if the sum of two angles is 125 degree, find the measure of third angle?**

A. 55

B. 45

C. 65

Answer: 55 degree**In a triangle if one angle is equal to the sum of the other two angles, then the triangle is ———**

A. Acute angled

B. Obtuse angled

C. Right angled

Answer: Right angled**If two parallel lines are cut by a transversal, then the sum of the interior angles on the same side of transversal are ———-**

A. Complementary

B. Supplementary

C. Equal

Answer: Supplementary**An angle which is greater than 180 degree but less than 360 degree is called a ——– angle.**

A. Straight angle

B. Reflex angle

C. Right angle

Answer: Reflex angle**Two angles whose measures are a and b are such that 3a – b = 60 degree. Find the value of a, if they form a linear pair?**

A. 40 degree

B. 60 degree

C. 80 degree

Answer: 60 degree**Two angles form a linear pair. If one angle is 45 degree, find the angle measure of other angle?**

A. 135 degree

B. 115 degree

C. 45 degree

Answer: 135 degree**If one angle measure is x, then the complement of x is ———-**

A. 90 – x

B. 90 + x

C. 180 – x

Answer: 90 – x**The supplement of a right angle is ————-**

A. Acute angle

B. Obtuse angle

C. Right angle

Answer: Right angle**The supplement of an acute angle is always an ———- angle.**

A. Acute

B. Obtuse

C. Right

Answer: Obtuse**If two parallel lines are cut by a transversal, then the two interior angles on the same side of transversal are in the ratio 1:2, then the measure of greater angle is ———–**

A. 60

B. 90

C. 120

Answer: 120 degree**The angles of a triangle are in the ratio 2: 3: 4. Then the triangle is a ————- angled triangle.**

A. Acute

B. Obtuse

C. Right

Answer: Acute**The angles of a triangle are in the ratio 2: 3: 4. Then the greatest angle of the triangle is —–**

A. 40

B. 60

C. 80

Answer: 80 degree**Two parallel lines intersect at ——— points**

A. One

B. Two

C. Never intersects

Answer: Never intersects**Exterior angle of a triangle is equal to the sum of its ——– interior opposite angles.**

A. One**B. Two**

C. Three

Answer: Two