CBSE Class 7 Mathematics Lines and angles MCQs

Question. What is the least number of degrees by which the pointer on the dial below has to turn clockwise to move from position X to position Y ?

a) 220^o
b) 216^o
c) 230^o
d) 250^o

Answer: B

Question. How many times in a 24-hour day is one of the hands of this clock EXACTLY at 6 while the other makes an acute angle with it?

a) 
b) 
c) 
d) 

Answer: B

Question. The picture of the regulator of a fan (at the 'OFF' position) is shown. 
By how many degrees does it have to be turned if I want to turn it from the 'OFF' position to speed '4'?

a) 160^o
b) 240^o
c) 288^o
d) 300^o

Answer: B

Question. In the figure, ray QT bisects anglePQR and ray QS bisects anglePQT. The degree measure of angle SQR is

a) 60^o
b) 67.5^o
c) 75^o
d) 72.5^o

Answer: B

Question. What is the length of the line next to the scale?

a) 5.1 cm
b) 3.7 cm
c) 3.3 cm
d) 2.3 cm

Answer: D

Question. A rope of length n cm is cut into 3 equal parts. The length of each part (in cm) will be
a) 3⁄n
b) n − 3
c) 3n
d) n⁄3

Answer: D

Question. A line parallel to line PQ is to be drawn through R. Which of the points - A, B, C or D will it pass through?

a) A
b) B
c) C
d) D

Answer: A

Question. Look at the following figures. By what angle does Figure 1 have to be rotated clockwise to get Figure 2?

a) 90^o
b) 180^o
c) 45^o
d) 60^o

Answer: C

Question. How many pairs of parallel lines are there in the figure below?

a) 4
b) 3
c) 2
d) 1

Answer: B

Question. In the given figure, lines p and q are parallel. One of the angles is given. What will be the measure of the angle marked 'x'?

a) 110^o
b) 70^o
c) 90^o
d) cannot say for sure

Answer: D

Question. The sum of two angles of a triangle is 750 . What type of triangle is it?
a) Right angled
b) Obtuse angled
c) Acute angled
d) We can't say

Answer: B

Question. A quadrilateral can be divided into 2 triangles that are non-overlapping and don't intersect inside the triangle. The following figure shows the number of non-overlapping triangles that some other polygons can be divided into in a similar way. From this, we can say that when the number of sides of a polygon is p, the number of such non-overlapping triangles that it can be divided into is

a) 2 less than p
b) half of p
c) 1 less than p
d) equal to p

Answer: A

Question. Mahima draws a triangle PQR obtuse angled at P. What Could be  the sum of the degree measures of angle Q and angle R?
a) 120
b) 98
c) 90
d) 87

Answer: D

Question. Shown here are  EXAMPLES of different types of triangles. Which of these statements are ALWAYS true (not only for the 4 triangles shown)

a) A Right-angled triangle CANNOT BE an Obtuse-angled triangle
b) An Isosceles triangle CANNOT BE a Right-angled triangle
c) An Isosceles triangle CANNOT BE an Acute-angled triangle
d) A Scalene triangle CANNOT BE an Obtuse angled triangle

Answer: A

Question. In the figure, the base of the triangle is extended on both sides. Which of these can we NOT say with certainty?

a) a + b + c = 180^o
b) b + d = 180^o
c) c + e = 180^o
d) d + e = 180^o

Answer: D

Question. Measure of a reflex angle lies between:
a) 0º and 360º
b) 90º and 180º
c) 180º and 360º
d) 0º and 180º

Answer: C

Question. If one angle is (90−x)º. Find the supplement.
a) 90
b) x
c) x−90
d) 90+ x

Answer: D

Question. Two angles can be supplement if both of them are:
a) obtuse angles
b) right angles
c) acute angles
d) reflex angles

Answer: B

Question. Which pair of angles are complementary:
a) yº,(180−y)º
b) xº, (90 + x)º
c) x, (90−x)º
d) 63º , 37º

Answer: C

Question. An angle of a linear pair is half of a right angle. Find the measures of the angles.
a) 90º, 45º
b) 45º, 135º
c) 90º , 90º
d) 60º , 120º

Answer: B

Question.
a) 60º
b) 120º
c) 30º
d) 90º

Answer: A

Question. Number of angles formed by a transversal, when it intersects 3 parallel lines is:
a) 8
b) 12
c) 4
d) 6

Answer: B

Question. In the given figure
a) 40º
b) 30º
c) 35º
d) 19º

Answer: C

Question. When two parallel lines are intersected by a transversal, then interior angles on the same side of the transversal are :
a) equal
b) supplementary
c) complementary
d) none of these

Answer: B

Question. Two angles which have one common vertex and their arms are opposite rays are called :
a) vertically opposite angles
b) alternate interior angles 
c) linear pair
d) right angles

Answer: C

Question. Measure of an angle lies between ____ and ____ :
a) 0º and 180º
b) 0º and 360º
c) 1º and 180º
d) 90º and 360º

Answer: B

Question.In the figure
a) 40º
b) 60º
c) 80º
d) 100º

Answer: C

Question. Two lines perpendicular to the same line are ______________ to each other :
a) Perpendicular
b) parallel
c) opposite
d) none of these

Answer: B

Question. In the figure m // n and p // q. If <1 = 70º, <2= ___ :

Answer: D

Question. Measure of two complementary angles are in the ratio 2 : 3. Find the measure of the bigger angle.
a) 64º
b) 36º
c) 70º
d) 54º

Answer: D

Question. In the figure given below , < y = ________ :

a) 100º
b) 120º
c) 60º
d) 80º

Answer: B

Question. Among two supplementary angles the bigger angle is 40º more than the smaller angle. Find the measure of the smaller angle.
a) 60º
b) 70º
c) 80º
d) 25º

Answer: B

Question. A ray has how many end points?
(a) one
(b) two
(c) three
(d) zero

Question.What is the sum of the measures of two supplementary angles?
(a) 900
(b) 180⁰
(c) 360⁰
(d) 270⁰

Question. In the given figure, ABǁCD & EF is the transversal. If angle AGH = 600 , what is the measure of angle DHF ? 
(a) 90⁰
(b) 120⁰
(c) 180⁰
(d) 105⁰

Question. A line has how many end points? F
(a) one
(b) two
(c) three
(d) zero

Question. What is the sum of the measures of two complementary angles?
(a) 90⁰
(b) 120⁰
(c) 180⁰
(d) 105⁰