false
The base angles are always congruent.
false
False
true
Sometimes. "Scalene" simply means that the three sides have different lengths. This does not imply that the triangle has to have an obtuse angle.
false
It's true that an obtuse triangle is never right because obtuse triangles are bigger than right triangles, which are 90 degrees. Obtuse Triangles are always bigger than Right triangles(90 degrees) , so It is true.
false
Yes, its not possible to have a "right obtuse triangle"
true
true
The sum of the interior angles on an Obtuse Triangle is 1800 . This is true of ALL triangles.
An obtuse triangle must have two acute angles and these can be congruent.
No
true
I assume that the second use of the word "triangle" in the question should be angle. An obtuse triangle must have two acute angles.