Question

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what kind of triangle is this?
60°
60°
60°
equilateral
isosceles but not equilateral
scalene

Explanation:

An equilateral triangle has all three angles equal to \(60^{\circ}\). In the given triangle, all three angles are \(60^{\circ}\). An isosceles triangle has at least two equal angles (and sides), but if all three are equal, it's equilateral (a special case of isosceles). A scalene triangle has all angles (and sides) of different measures. Since all angles here are \(60^{\circ}\), it fits the equilateral triangle definition.

Answer:

equilateral