This is an equilateral triangle, meaning that all sides and all angles are equal, as shown through the three equal side lengths, so all you have to do is find what makes all three angles the same number!
A triangle has 180 degrees, and this one has 3 equal angles because it has 3 equal sides, so 180/3 is 60 degrees!
Since all of the sides of the triangle are equal, we know we are dealing with an equilateral triangle. An equilateral triangle has equal sides and all of its angles are equal as well. We also know that a triangle's angles add up to 180°. Therefore, if we were to divide 180° evenly between the three equal angles, we would discover that each angle measures 60°. Your answer is C.
