Which term describes a triangle that has a 90 degree angle?

Which term describes a triangle that has a 90 degree angle?

• A. Obtuse Triangle
• B. Right Triangle
• C. Fillet
• D. Work Axis

Answer: (B)

Recognizing triangle types by their angles. A triangle that has a 90-degree angle is called a right triangle. That 90-degree angle is the defining feature, and the other two angles in such a triangle add up to 90 degrees. An obtuse triangle would have an angle larger than 90, which doesn’t match having a 90-degree angle. A fillet is a rounded corner feature in drawings, not a triangle type. A work axis is a construction reference line, also not a triangle type. So, the correct term is right triangle.

Recognizing triangle types by their angles. A triangle that has a 90-degree angle is called a right triangle. That 90-degree angle is the defining feature, and the other two angles in such a triangle add up to 90 degrees. An obtuse triangle would have an angle larger than 90, which doesn’t match having a 90-degree angle. A fillet is a rounded corner feature in drawings, not a triangle type. A work axis is a construction reference line, also not a triangle type. So, the correct term is right triangle.