Q. In the joining figure, name the following pairs of angles.
Adjacent angles that do not form a linear pair.

Q. In the adjoining figure, name the following pairs of angles.
Adjacent complementary angles.

Q. In the following figure, is $\angle 1$ adjacent to $\angle 2$? Given reasons.

Q. In the adjoining figure, name the following pairs of angles.
Equal supplementary angles

Q. In figure given alongside $AB$ and $CD$ are intersecting lines. Name the following pair of angles.
Equal supplementary angles

Q. From the figure given above, find the values of angles $x$, $y$ and $z$.

Q. In the adjoining figure, name the following pairs of angles.
Obstuse vertically opposite angles

Q. Fill in the blanks:
If two line intersect at a point and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are_______.

Q. In the adjoining figure, name the following pairs of angles.
Unequal supplementary angles

Q. Find the complement of the angle represented in given figure.

Q. Find the supplement of the angle shown in the above figure.

Q. Find the supplement of each of the following angles:

Q. Find the supplement of each of the following angles:

Q. Identify whether the following pairs of angles are complementary or supplementary:
${65}^o,{115}^o$

Q. Find the angle which is equal to its complement:

Q. Find the angle which is equal to its supplement.

Q. In the given figure, $\angle 1$ and $\angle 2$ are supplementary angles. If $\angle 1$ is decreased, what changes should take place in $\angle 2$ so that both the angles still remain supplementary?

Q. Can two angles be supplementary if both of them are: (i) acute (ii) obtuse (iii) right?

Q. An angle is greater than ${45}^o$. Is its complementary angle greater than ${45}^o$ or equal to ${45}^o$ or less than ${45}^o$ ?

Q. In the adjoining figure:
(i) Is $\angle 1$ adjacent to $\angle 2$?
(II) Is $\angle AOC$ adjacent to $\angle AOE$ ?
(iii) Do $\angle COE$ and $\angle EOD$ form a linear pair?
(Iv) Are $\angle BOD$ and $\angle DOA$ supplementary?
(v) Is $\angle 1$ vertically opposite to $\angle 4$?
(vi) What is the vertically opposite angle of $\angle 5$ ?