Which term is a three-sided polygon?

Study for the MCA Math Vocabulary 4th Grade Test. Prepare with flashcards and multiple choice questions, each question offers hints and explanations. Gear up for your exam!

Multiple Choice

Which term is a three-sided polygon?

Explanation:
A triangle is a three-sided polygon. A polygon is any closed figure with straight sides, and a triangle has exactly three sides, so it fits both ideas at once. An open figure isn’t closed, so it isn’t a polygon, and an angle is not a polygon at all—it's just two rays that meet at a point. The term that names the specific three-sided polygon is triangle.

A triangle is a three-sided polygon. A polygon is any closed figure with straight sides, and a triangle has exactly three sides, so it fits both ideas at once. An open figure isn’t closed, so it isn’t a polygon, and an angle is not a polygon at all—it's just two rays that meet at a point. The term that names the specific three-sided polygon is triangle.

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