Construction of Perpendicular Line and Angle Bisector

In the diagram, $KLMN$ is a constructed parallelogram. What is the measure of $\angle KLM$?

A circle with centre at point $O$ and radius $6 \mathrm{c}\mathrm{m}$ is drawn. Two chords $PQ$ and $RS$ are drawn in it, such that $PQ$ is not parallel to $RS$. After that, perpendicular bisectors of $PQ$ and $RS$ are made. Name the point at which they intersect?

Steps of construction of perpendicular bisector of a line segment $AB$ is given below.

1. Taking $A$ and $B$ as centres and radius more than half of $AB$, draw arcs on both sides of the line segment $AB$ (to intersect each other).
2. Let these arcs intersect each other at $P$ and $Q$. Join $PQ$.
3. Let $PQ$ intersect $AB$ at the point $M$.

Now, $PQ$ is the perpendicular bisector of _____ . ($AB/AQ/QM$)

The measure of one of the bisector angle of $170°$ is

The measure of one of the bisector angle of $52°$ is

The length of each part of a line segment of length $8.6 \mathrm{cm}$ after bisecting is $4.3 \mathrm{cm}$.

A circle with centre at point $O$ and radius $6 \mathrm{c}\mathrm{m}$ is drawn. Two chords $PQ$ and $RS$ are drawn in it, such that $PQ$ is not parallel to $RS$. After that, perpendicular bisectors of $PQ$ and $RS$ are made. Name the point at which they intersect?

For bisecting an angle, compasses has to be used _____ times.

If we bisect a line segment of $10 \mathrm{cm}$, and then again bisect one of the equal parts, then the length of the bisected part is