Answer:
9. obtuse isosceles
10. equiangular equilateral
For 10., it is also acute equilateral, but if you can pick only one answer, go with the answer above which is more descriptive.
Step-by-step explanation:
9.
Two sides are congruent. The third side is not congruent to the other two.
According to sides: isosceles triangle.
One angle is obtuse.
According to angles: obtuse triangle
10.
All sides are congruent.
According to side: equilateral triangle.
All angles are congruent, and each angle measures 60 deg. All angles are acute.
According to angles: equiangular triangle
According to angles: acute triangle.
