Types of Angle

In the figure, $AOB$ is a line. find the value of $x$.

Find the value of  $y$ and then find the value of the remaining angle.

What is linear pair.

Jeenal draws an angle.

What is the measure of $\angle BOA$?

Angad says, $QT$ is the line of symmetry for $\angle PQR$.

Bhupesh says, $QS$ is the line of symmetry for $\angle PQR$.

What is the measure of $\angle PQT$?

If two angles are supplementary and one angle is $20°$ less than three times other angle, find the angles.

What is acute angle explain with diagram.

If $\angle A \text{and} \angle B$ are two supplementary angles. If $\angle A= 3x-2 \text{and} \angle B= 2x+7$ then the difference between $\angle A\text{ and} \angle B$ is: