Question 1 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7e2f59b460d7261e7ac.PNG' />
In the above figure, what is the value of $\angle BOC$, if points A, O and B are collinear?
Question 3 :
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In the above figure, lines l and m intersect each other at a point. Which of the following is false?
Question 4 :
State TRUE or FALSE. Sum of two complementary angles is 180°.
Question 5 :
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
Question 6 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7bdf59b460d7261e777.PNG' />
In the above figure, $\text { POQ is a line. If } x = 30 ^ { \circ } \text { , then } \angle Q O R \text { is }$
Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7e9f59b460d7261e7b7.PNG' />
In the above figure, examine whether EF and GH are parallel or not
Question 8 :
Measures (in degrees) of two supplementary angles are consecutive odd integers. What are the angles?
Question 9 :
What is the type of other angle of a linear pair if one of its angles is right?
Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7b4f59b460d7261e76b.PNG' />
In the above figure, a pair of corresponding angles is -
Question 11 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7e5f59b460d7261e7b1.PNG' />
In the above figure, PQ, RS and UT are parallel lines. If $c = 57 ^ { \circ }$ and $a = \frac { c } { 3 }$ , find the value of d.
Question 12 :
<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 13 :
If two lines are intersected by a transversal, then the number of pairs of interior angles on the same side of the transversal is
Question 15 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c4f59b460d7261e782.PNG' />
In the above figure, lines PQ and ST intersect at O. If $\angle POR = 90 ^ { \circ }$ and x : y = 3 : 2, then z is equal to
Question 16 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c1f59b460d7261e77d.PNG' />
For the above figure, statements p and q are given below:
p: a and b are forming a linear pair.
q: a and b are forming a pair of adjacent angles. Then,
Question 17 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c7f59b460d7261e786.PNG' />
In the above figure, $PQ \| RS$ and a : b = 3 : 2. Then, f is equal to
Question 18 :
<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 19 :
State TRUE or FALSE. Two supplementary angles are always obtuse angles.
Question 20 :
<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 21 :
If a transversal intersects two parallel lines, then alternate interior angles are on the _________ side of the transversal.
Question 22 :
State TRUE or FALSE. One obtuse angle and one acute angle can make a pair of complementary angles.
Question 23 :
<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 24 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7dcf59b460d7261e7a4.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 c and f?
Question 25 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7e0f59b460d7261e7aa.PNG' />
In the above figure, if $l \| m$, find the value of b.
Question 26 :
<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 27 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7b7f59b460d7261e76f.PNG' />
In the above figure, the points A, O and B are collinear. Ray OC $\bot$ ray OD. Are $\angle AOC$ and $\angle BOC$ supplementary?
Question 28 :
State TRUE or FALSE. Both angles of a pair of supplementary angles can never be acute angles.
Question 29 :
If two supplementary angles are in the ratio 1 : 2, then the bigger angle is
Question 30 :
<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 31 :
If a transversal intersects two parallel lines, and the difference of two interior angles on the same side of a transversal is $20^{\circ}$, what are the angles?
Question 33 :
State TRUE or FALSE. An angle is more than $45^{\circ}$. Its complementary angle must be less than $45^{\circ}$.
Question 34 :
What is the type of other angle of a linear pair if one of its angles is acute?
Question 35 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7c5f59b460d7261e783.PNG' />
In the above figure, POQ is a line, then a is equal to
Question 36 :
If a transversal intersects two parallel lines, then sum of interior angles on the same side of a transversal is _________.
Question 37 :
<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 38 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7cef59b460d7261e78f.PNG' />
In the above figure, $PQ \| RS , TR \| QU \text { and } \angle PTR = 42 ^ { \circ } . \text { What is } \angle QUR?$
Question 39 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7bff59b460d7261e77b.PNG' />
In the above figure, $PQ \| SR \text { and }$ SP is parallel to RQ. Then, angles a and b are respectively
Question 40 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7cff59b460d7261e791.PNG' />
In the above figure, $l \| m \| n . \angle QPS = 35 ^ { \circ } \text { and } \angle QRT = 55 ^ { \circ } . \text { What is } \angle PQR?$
Question 41 :
<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 42 :
State TRUE or FALSE. Two angles are called adjacent angles, if they have a common vertex and a common arm but no common interior points.
Question 43 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7d5f59b460d7261e79a.PNG' />
In the above figure, are the pair of angles adjacent?
Question 44 :
<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 45 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7eaf59b460d7261e7b8.PNG' />
In the above figure, examine whether AB and CD are parallel or not
Question 46 :
If a transversal intersects two parallel lines, then corresponding angles are on the _________ side of the transversal.
Question 47 :
<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 48 :
State TRUE or FALSE. A linear pair may have two acute angles.
Question 49 :
If an angle is $60^{\circ}$ less than two times of its supplement, then the greater angle is