a triangle is a figure formed by three segments connecting three collinear points true or false?
http://www.mathopenref.com/collinear.html
False. A triangle is a figure formed by three non-collinear points connected by line segments. To determine if a statement is true or false, you can refer to the definition and properties of the concept in question.
In this case, a triangle is defined as a polygon with three sides and three angles. To form a triangle, you need three points, and those points must not lie on the same line, or be collinear. If the points are collinear, they would form a straight line, not a triangle. Hence, the statement in question is false.