Can someone pls help me figure out letter C

Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?