The answer is B. obtuse, because obtuse angles are between 90° and 180°. Acute angles are between 0 and 90, right angles are 90° exactly, and straight angles are 180°. I hope this helps!
obtuse if an angle is above 90 yet below 180 is is obtuse if an angle is below 90 yet above 0 it is acute if an angle is 180 it is straight and if a angle is 90 it is right
