Answer :

Theorems apply for equilateral triangles are theorem 1 and 2, In theorem 1 each angle of an equilateral triangle is the same and measures 60 degrees each while in theorem 2 a triangle is said to be equilateral if and only if it is equiangular.

What is theorems?

Theorem can be defined as  a statement which has been proved true by a special kind of logical argument called a rigorous proof.

There are different types of theorem such as:

  • Pythagorean theorem
  • Sine rule
  • Cosine rule
  • Mean value theorem
  • Mid-point theorem
  • Triangle sum theorem
  • Factor theorem

Learn more about theorem here: brainly.com/question/26594685

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