Angles that are not 90 degrees are called what?

Angles that are not 90 degrees are called what?

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

Answer: (C)

Angles that aren’t 90 degrees are described as oblique angles. This term groups any angle that is not a right angle, covering both smaller-than-90 angles (acute) and larger-than-90 angles (obtuse). A right angle is exactly 90 degrees, so it’s not oblique. A straight angle is 180 degrees, a specific case separate from the non-right category, and acute angles are only the ones under 90. Since the question asks for angles not equal to 90 degrees, the broad label that fits all of them is oblique.

Angles that aren’t 90 degrees are described as oblique angles. This term groups any angle that is not a right angle, covering both smaller-than-90 angles (acute) and larger-than-90 angles (obtuse). A right angle is exactly 90 degrees, so it’s not oblique. A straight angle is 180 degrees, a specific case separate from the non-right category, and acute angles are only the ones under 90. Since the question asks for angles not equal to 90 degrees, the broad label that fits all of them is oblique.