Classify the triangle by its sides and by its angles.
A triangle with three sides of different length, two angles less than ninety degrees and one angle greater than ninety degrees.
A.
isosceles, obtuse
B.
scalene, obtuse
C.
isosceles, acute
in other words, B: scalene, obtuse
Yes, that is correct.
To classify a triangle by its sides, we need to examine the lengths of the sides.
In this case, the triangle has three sides of different lengths. Therefore, it is classified as a scalene triangle.
To classify a triangle by its angles, we need to examine the measures of the angles.
In this case, the triangle has two angles less than ninety degrees and one angle greater than ninety degrees. Therefore, it is classified as an obtuse triangle.
Hence, the correct classification for the triangle is option B: scalene, obtuse.