Find the area of the triangle.
a. 48.45 in2
b. 20.4 in2
c. 40.8 in2
d. 81.6 in2

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

Vertical angles must check all that apply

Which of the following is the major negative aspect of crossover designs for research studies? a. prohibitive cost b. residual effects c-subject drepout d. incomplete randomization e. large sample size required