Identify the observational units and variable in the given scenario. The number of Harry Potter books read by the students in the class.
OU:
Variable:

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle