Question 1 :
State TRUE or FALSE. Two right angles are complementary to each other.
Question 2 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c3f59b460d7261e781.PNG' />
In which of the above figures, a and b are forming a pair of adjacent angles?
Question 3 :
State TRUE or FALSE. When the sum of the measures of two angles is 180°, the angles are called complementary angles. Each of them is called complement of the other.
Question 4 :
Two lines in a plane which never meet at any point are called _________.
Question 5 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7baf59b460d7261e774.PNG' />
In the above figure, $\text { if } AB \| CD , \angle APQ = 50 ^ { \circ } \text { and } \angle PRD = 130 ^ { \circ } , \text { then } \angle QPR \text { is }$.
Question 6 :
If angle P and angle Q are supplementary and the measure of angle P is $60^{\circ}$, then the measure of angle Q is
Question 7 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7b5f59b460d7261e76c.PNG' />
In the above figure, four line segments PQ, QR, RS and ST are making the letter W, $PQ\|RS$ and $QR\|ST$. If angle between PQ and QR is $39^{\circ}$, what are the values of x and y?
Question 8 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c0f59b460d7261e77c.PNG' />
In the above figure, $\angle ROS $ is a right angle and $ \angle POR $ and $\angle QOS $are in the ratio 1 : 5 . Then, $ \angle Q O S$ measures-'
Question 9 :
If the complement of an angle is $62^{\circ}$, then what is its supplement?
Question 10 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7b8f59b460d7261e771.PNG' />
In the above figure, CD intersects the line AB at F, $\angle CFB = 50^{\circ}$ and $\angle EFA$ = $\angle AFD$. Find the measure of $\angle EFC$.
Question 11 :
Angles of a linear pair are _________ as well as ________ .
Question 12 :
If a transversal intersects two parallel lines, then sum of interior angles on the same side of a transversal is _________.
Question 13 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7dcf59b460d7261e7a3.PNG' />
In the above figure, it shows iron rods a, b, c, d,e and f are making a design in a bridge, in which $a \| b, c \| d, e \| f$. What are the marked angles between d and e?
Question 14 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7e4f59b460d7261e7af.PNG' />
In the above figure, $QP \| RS$. Find the value of b.
Question 15 :
In a pair of adjacent angles,
(i) vertex is always common,
(ii) one arm is always common, and
(iii) uncommon arms are always opposite rays. Then
Question 16 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7d7f59b460d7261e79d.PNG' />
In the above figure, a road crosses a railway line at an angle of $30^{\circ}$ . What is the value of a?
Question 17 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7d1f59b460d7261e794.PNG' />
In the above figure, if two angles have a common vertex and their arms form opposite rays. Then how many angles are formed?
Question 19 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c7f59b460d7261e787.PNG' />
In the above figure, line l intersects two parallel lines PQ and RS. Then, which one of the following is not true?
Question 20 :
If sum of measures of two angles is $180^{\circ}$, then the angles are _________.
Question 21 :
If sum of measures of two angles is $90^{\circ}$, then the angles are _________.
Question 22 :
State TRUE or FALSE. An angle is formed when two lines or rays or line segments meet or intersect.
Question 23 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7edf59b460d7261e7bb.PNG' />
In the above figure, two parallel lines l and m are cut by two transversals p and q. What are the values of x and y?
Question 24 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7e7f59b460d7261e7b4.PNG' />
In the above figure, two parallel lines l and m are cut by two transversals n and p. Find the values of x and y.
Question 25 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c2f59b460d7261e77f.PNG' />
In the above figure, the value of a is
Question 26 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7b9f59b460d7261e772.JPG' />
In the above figure, PQ is a mirror, AB is the incident ray and BC is the reflected ray. If $\angle ABC $ =$ 46 ^ { \circ }$ , $\angle ABP$ is equal to -
Question 27 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c3f59b460d7261e780.PNG' />
In the above figure, if $\text { QP } \| \text { SR }$, the value of a is
Question 28 :
State TRUE or FALSE. Two angles making a linear pair are always supplementary.
Question 29 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7bdf59b460d7261e778.PNG' />
In the above figure, the value of y is
Question 30 :
State TRUE or FALSE. Both angles of a pair of supplementary angles can never be acute angles.
Question 31 :
State TRUE or FALSE. Vertically opposite angles are either both acute angles or both obtuse angles.
Question 32 :
State TRUE or FALSE. Vertically opposite angles form a linear pair.
Question 33 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7d9f59b460d7261e79f.PNG' />
In the above figure, a road crosses a railway line at an angle of $30^{\circ}$ . What is the value of c?
Question 34 :
State TRUE or FALSE. Sum of interior angles on the same side of a transversal with two parallel lines is 90°.
Question 35 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7dff59b460d7261e7a8.PNG' />
In the above figure, three lines AB, CD and EF intersect each other at O. $\text { If } \angle AOE = 30 ^ { \circ } \text { and } \angle DOB = 40 ^ { \circ }$, what is $\angle COF$?
Question 36 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c5f59b460d7261e784.PNG' />
In the above figure, $a = 40 ^ { \circ }$, The value of b is
Question 37 :
State TRUE or FALSE. Interior angles on the same side of a transversal with two distinct parallel lines are complementary angles.
Question 38 :
State TRUE or FALSE. Two right angles are always supplementary to each other.
Question 39 :
Measures (in degrees) of two supplementary angles are consecutive odd integers. What are the angles?
Question 40 :
Two lines in a plane which do not meet at a point anywhere are called _________ lines.
Question 41 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c1f59b460d7261e77e.PNG' />
In the above figure, $\angle A O C \text { and } \angle B O C \text { form a pair of }$.
Question 42 :
State TRUE or FALSE. Two supplementary angles always form a linear pair.
Question 43 :
State TRUE or FALSE. One obtuse angle and one acute angle can make a pair of complementary angles.
Question 44 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7caf59b460d7261e78a.PNG' />
In the above figure, $PQ \| ST$. Then, the value of x + y is
Question 45 :
State TRUE or FALSE. When the sum of the measures of two angles is 180°, the angles are called supplementary angles. Each of them is called supplement of the other.
Question 46 :
State TRUE or FALSE. Two adjacent angles always form a linear pair.
Question 47 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7d2f59b460d7261e795.PNG' />
In the above figure, if two angles have a common vertex and their arms form opposite rays. Then how many types of angles are formed?
Question 49 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7d3f59b460d7261e797.PNG' />
In the above figure, are the pair of angles adjacent?
Question 50 :
Statements a and b are as given below:
a: If two lines intersect, then the vertically opposite angles are equal.
b: If a transversal intersects, two other lines, then the sum of two interior angles on the same side of the transversal is $180^{\circ}$. Then
