Which statement correctly defines a scalene triangle?

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Multiple Choice

Which statement correctly defines a scalene triangle?

Explanation:
A scalene triangle is defined by having all three sides of different lengths. No two sides are equal, so the triangle doesn’t have any equal base angles as a consequence of equal sides. This sets it apart from an isosceles triangle, where two sides are equal and those opposite angles are equal, and from an equilateral triangle, where all three sides (and all three angles) are equal. The statement about a four-sided polygon describes a quadrilateral, not a triangle, so it’s outside this classification.

A scalene triangle is defined by having all three sides of different lengths. No two sides are equal, so the triangle doesn’t have any equal base angles as a consequence of equal sides. This sets it apart from an isosceles triangle, where two sides are equal and those opposite angles are equal, and from an equilateral triangle, where all three sides (and all three angles) are equal. The statement about a four-sided polygon describes a quadrilateral, not a triangle, so it’s outside this classification.

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