Question 1 :
<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 3 :
If the complement of an angle is $79^{\circ}$, then the angle will be of
Question 4 :
If sum of measures of two angles is $90^{\circ}$, then the angles are _________.
Question 5 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7cbf59b460d7261e78b.PNG' />
In the above figure, if $PQ \| RS$ and $QR \| TS$, then the value of a is
Question 6 :
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 7 :
If a transversal intersects two parallel lines, then alternate interior angles are on the _________ side of the transversal.
Question 8 :
Out of a pair of complementary angles, one is two-third of the other. What are the angles?
Question 9 :
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 10 :
<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 11 :
<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 12 :
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 13 :
State TRUE or FALSE. Two supplementary angles are always obtuse angles.
Question 14 :
Adjacent angles have a common vertex, a common __________ and no-common _________.
Question 15 :
If a transversal intersects two parallel lines, then alternate interior angles have one common _________.
Question 16 :
State TRUE or FALSE. Two angles making a linear pair are always supplementary.
Question 17 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7bcf59b460d7261e776.PNG' />
In the above figure, POR is a line. The value of a is
Question 18 :
<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 19 :
<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 20 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c7ddf59b460d7261e7a5.PNG' />
In the above figure, $A B \| C D , A F \| E D , \angle A F C = 68 ^ { \circ } \text { and } \angle F E D = 42 ^ { \circ } . \text { Find } \angle E F D.$