FTCE General Knowledge Math Practice Test 2026 – All-in-One Guide to Ensure Exam Success!

A correct understanding of angle measures identifies that an angle between 90° and 180° is classified as an obtuse angle. This type of angle is characterized by being larger than a right angle (which measures exactly 90°) but smaller than a straight angle (which measures exactly 180°).

In contrast, acute angles measure less than 90° and straight angles measure exactly 180°. Therefore, the designation of an angle that exceeds 90° but does not reach 180° is appropriately described as obtuse, making it the correct answer.