Someone please help me, i dont know for sure if i got it right

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab