Mathematics
MCQ | Class 09 | Chapter 6
Lines and Angles
- MCQ Based on the different types of angles.
- MCQ Based on the concept of parallel lines.
- MCQ Based on the Lines and angles.
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
- 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
Q10) In Figure AB || CD, the value of x is
(a) 35° (b) 40° (c) 60° (d) 75°
Ans: d
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 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