Answer: The answer is D. Equilateral, acute.
Step-by-step explanation:
I solved this by using elimination. A. There is no such thing as a right equilateral. B. All three sides on this triangle are the same length, therefore not a scalene triangle. C. An Isosceles triangle only has two sides of the same length, while this one's sides are all the same.
D is the only correct answer.
