Using protractor draw $\angle BAC$ of measure $50°$. In $AC$, take a point $P$, such that $AP=4.5 \text{cm}$. From $P$, draw a line segment perpendicular to $AB$.

Draw a perpendicular bisector of a line segment $XY$ whose length is $11.2\text{ cm}$. Take a point $P$ on the right bisector drawn. Examine whether $PX=PY$.

Draw a perpendicular bisector of a line segment $XY$ whose length is $11.2\text{ cm}$. If $M$ is the midpoint of $XY$, what relation is there between the lengths $MX \text{and} XY$?

Construct angle congruent to the given angle.