Assertion: triangle | /r/HasAspect | obtuse angle
Facets:
Source sentences:
text: An triangle is said to be acute if all three of its angles are all acute, a triangle having an obtuse angle is called an obtuse triangle, and a triangle with a right angle is called right.
text: The opposite side to the right angle is the hypotenuse; if a triangle has an obtuse angle, that is, if one of the angles of that triangle is larger than 90°, then we have an obtuse triangle ;
text: When a triangle has an obtuse angle, it's an obtuse-angled triangle (or obtuse triangle).