alleryA triangle having one angle of exactly 90° is called what?
ARight triangle
BAcute triangle
CObtuse triangle
DScalene triangle
Answer & Solution
Correct answer: A. Right triangle
1. One 90° angle makes a right triangle.
2. Acute triangles have all angles below 90°.
3. Obtuse triangles have one angle above 90°.
_Source: Wikipedia, Triangle, Definition, terminology, and types_
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