Acute angles are _____.

Acute angles are _____.

• A. Right angles
• B. Oblique
• C. Acute
• D. Straight

Answer: (B)

Acute angles are defined by their size: they measure less than 90 degrees. That specific measure is what distinguishes them from other angle types. Right angles are exactly 90 degrees, and straight angles are 180 degrees. An oblique angle simply means an angle that is not a right angle, which can be either acute or obtuse, so it doesn’t specify the actual size. So the precise description of acute angles is that they are smaller than a right angle.

Acute angles are defined by their size: they measure less than 90 degrees. That specific measure is what distinguishes them from other angle types. Right angles are exactly 90 degrees, and straight angles are 180 degrees. An oblique angle simply means an angle that is not a right angle, which can be either acute or obtuse, so it doesn’t specify the actual size. So the precise description of acute angles is that they are smaller than a right angle.