What is the range for this set of data? 38, 17, 55, 40 02 38 39 O 72​

Anyone know? will mark brainliest if correct!

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

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