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### Maths MCQ Class IX Ch-6 | Lines & Angles

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__Mathematics__

## MCQ | Class 09 | Chapter 6

__Lines and Angles__

**MCQ Based on the different types of angles.**

**MCQ Based on the different types of angles.****MCQ Based on the concept of parallel lines.**

**MCQ Based on the concept of parallel lines.****MCQ Based on the Lines and angles.**

**MCQ Based on the Lines and angles.**__Features__

__Features__

**In the MCQ given below you find the important MCQ which are strictly according to the CBSE syllabus and are very useful for the CBSE Examinations.****Solution Hints are also given to some difficult problems.****Each MCQ contains four options from which one option is correct.**

__Action Plan__

__Action Plan__

**First of all students should Learn and write all basic points and Formulas related to the Chapter 6****Lines and Angles.****Start solving the NCERT Problems with examples.****Solve the important assignments on the Chapter 6 Class XI.****Then start solving the following MCQ.**

# MCQ | CHAPTER - 6 | CLASS IX

LINES AND ANGLES

Q1) A line with two end points
is called

a) line

b) ray

c)
line-segment

d) triangle

Answer c

Q2) How many end points
does a ray have?

a) One

b) Two

c) Three

d) Four

Answer a

Q3) If x is an acute
angle, then what is true for x?

a) x = 90°

b) 0° <
x < 90°

c) 90° <
x < 180°

d) 180°
< x < 360°

Answer b

Q4) If x is a right
angle, what is true for x?

a) x = 90°

b) 180°
< x < 360°

c) 0° <
x < 90°

d) 90° <
x < 180°

Answer a

Q5) What is the angle
formed by a line?

a) 90°

b) 180°

c) 270°

d) 360°

Answer b

Q6) If 180° < x <
360°, then x is a ______ angle.

a) acute

b) obtuse

c) reflex

d) right

Answer c

Q7 The sum of
complimentary angles is

a) > 90°

b) < 90°

c) = 90°

d) = 180°

Answer c

Q8) The sum of two
supplementary angles is

a) > 90°

b) < 90°

c) = 90°

d) = 180°

Answer d

Q9) Find the value of k
in line *l *|| m?

b) 83°

c) 132°

d) 41°

Answer b

Q10) In Figure AB || CD, the value of x is

(a) 35°

(b) 40°

(c) 60°

(d) 75°

**Q11) An acute angle is:**

a) More than 90 degrees

b) Less than 90 degrees

c) Equal to 90 degrees

d) Equal to 180 degrees

Answer:** b**

**Q12) A reflex angle is:**

a) More than 90 degrees

b) Equal to 90 degrees

c) More than 180 degrees

d) Equal to 180 degrees

Answer:** c**

**Q13) A straight angle is equal to:**

a) 0°

b) 90°

c) 180°

d) 360°

Answer:** c**

**Q14) Two angles whose sum is equal to 180° are called:**

a) Vertically opposite angles

b) Complementary angles

c) Adjacent angles

d) Supplementary angles

Answer:** d**

**Q15) Intersecting lines cut each other at:**

a) One point

b) Two points

c) Three points

d) Null

Answer:** a**

Explanation: Two lines always intersect each other at one point.

**Q16) Two parallel lines intersect at:**

a) One point

b) Two points

c) Three points

d) Null

Answer:** d**

Explanation: If two lines are parallel to each other, they don’t intersect each other.

**Q17) If two lines intersect each other, then the vertically
opposite angles are:**

a) Equal

b) Unequal

c) Cannot be determined

d) None of the above

Answer:** a**

Explanation: If two lines intersect each other, then the angles formed at the point of intersection are vertically opposite angles and are equal.

Q18)
**If one of the angles of
a triangle is 130°, then the angle between the bisectors of the other two
angles can be **

(a) 50°

(b) 65°

(c) 145°

(d) 155°

Answer: **d**

**Q19) If two interior angles on the same side of a
transversal intersecting two parallel lines are in the ratio 2 : 3, then the
greater of the two angles is:**

(a) 54°

(b) 108°

(c) 120°

(d) 136°

Answer: **b**

**Q20) If one angle of a triangle is equal to the sum of the
other two angles, then the triangle is**

(a) a right triangle

(b) an isosceles triangle

(c) an equilateral triangle

(d) an obtuse triangle

Answer: **a**

**Q21) The angles of a triangle are in the ratio 5 : 3: 7.
The triangle is**

a) a right triangle

b) an acute-angled triangle

c) an obtuse-angled triangle

d) an isosceles triangle

Answer: **b**

**Q22) Angles of a triangle are in the ratio 2: 4 : 3. The
smallest angle of the triangle is**

a) 20°

b) 40°

c) 60°

d) 80°

Answer: **b**

**Q23) An obtuse angle is **

a) Less than 90°

b) Greater than 90°

c) Equal to 90°

d) Equal to 180°

Answer:** b**

Q24) An exterior angle of a triangle is 80° and
the interior opposite angles are in the ratio 1 : 3, measure of interior
opposite angles are

a) 30°, 90°

b) 40°, 120°

c) 20°, 60°

d) 30°, 60°

Answer c

Q25) The angle of a triangle are in the ratio 5
: 3 : 7, the triangle is

а) an acute-angled triangle

b) an obtuse angled triangle

c) an right angled triangle

d) an isosceles triangle.

Answer a

Q26) If one angle of triangle is equal to the
sum of the other two, then the triangle is

a) an isosceles triangle

b) an obtuse-angled triangle

c) an equilateral triangle

d) a right triangle

Answer d

Q27) One of the angles of a triangle is 75°. If
the difference of other two is 35°, then the largest angle of other two angles
has a measure

a) 80°

b) 75°

c) 70°

d) 135°

Answer C

Q28) Each angle of an equilateral triangle is

a) 50°

b) 90°

c) 54°

d) 60°

Answer d

Q29) In figure, find the value of y.

(a) 28°

(b) 40°

(c) 140°

(d) 56°

Answer a

Q30) In the given figure, if AOB is a straight
line, then ∠BOC is

(a) 80°

(b) 70°

(c) 60°

(d) 20°

Answer a

**Download Math MCQ Worksheet For Class IX**

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