Answer:
acute and scalene, remember:
Isoceles: An isosceles triangle is a triangle with two sides of equal length. The two equal sides are called legs and the third side is called the base.
Scalene: A scalene triangle is a triangle with all sides of different lengths. None of its angles are congruent.
Equilateral: An equilateral triangle is a triangle with all three sides of equal length. All three angles are congruent and measure 60 degrees.