Using a ruler and compass, construct angles of the following measures.

${90}^o$

Draw an angle of ${130}^o$ with the help of a protractor and bisect it using a compass.

Draw a line segment $\mathrm{AB}=9 \mathrm{cm}$. Using a compass, find the point $C$ such that $AC=BC$.

Draw an angle $\angle PQR={110}^o$ with the help of a protractor. Now draw $\angle ABC=\angle PQR$ using a ruler and compass.

Draw a line $AB$ and a point $C$ on it. Draw a line $CD$ perpendicular to $AB$.

Draw an angle of ${135}^o$ with the help of a ruler and compass.

Draw an angle of ${90}^o$ (using a compass) with the help of an angle of ${120}^o$ (using a protractor).

Based on the construction, which statement is true?