Question

Define Triangle????....​

Answer 1

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a plane figure with three straight sides and three angles.

"an equilateral triangle"

an emotional relationship involving a couple and a third person with whom one of them is also involved.

Step-by-step explanation:

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Answer 2

Answer:

Here's your answer :

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.

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