The pair of angles $x^{\circ }x^\backslash circ$ and $(180-x{)}^{\circ }(180-x)^\backslash circ$ are called … angles.

The supplementary angle to ${89}^{\circ }89^\backslash circ$ is

The complementary angle of an angle is twice the angle, then the angle is

If $x^{\circ }x^\backslash circ$ and $4x^{\circ }4x^\backslash circ$ are supplementary angles then the value of $xx$ is

If two angles have a common arm and both the angles lie on its either sides then they are called …… angles.

Two adjacent angles form a linear pair if their sum is

If two lines intersect each other then the pair of vertically opposite angles so formed are

In the figure, the value of x is

In the figure the value of x is

In the given figure, the value of ‘a’ is