Use set square to construct angles of.

$75°$

Use set squares to construct angle of $120°$.

Use set square to construct angles of 

$150°$

Use set square to construct angles of 

$135°$

Use set squares to construct angle of (v) $105°$

Draw a line segment$AB= 7cm$. using set squares, construct the perpendicular to the line segment at the point $A$.

Draw a line segment $\mathrm{AB}=7\mathrm{cm}$. Using sets squares. Construct the perpendicular to the line segment from the point $\mathrm{C}$ not on the line.

From the figure, write the measures of the pairs of adjacent angles. 

From the figure, write the measures of the pairs of adjacent angles.