A quadrilateral is "guaranteed" to be a parallelogram if
(a) the opposite side are parallel, or
(b) any line segment perpendicular to one side and intersecting the opposite side is also perpendicular to the opposite side, or
(c) any line segment perpendicular to one side and intersecting the opposite side has the same length as any other such perpendicular line intersecting the opposite side (sometimes vaguely expressed as "opposite sides are everywhere equidistant"), or
(d) the angles at the two ends of any side add up to 180 degrees.
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it is anisogamy
milage, interior condition, exterior condition
This is called the locus.
The answer is Yes and No both! In the condition ASS, expand it as Angle-Side1-Side2. Now, Two triangles are said to be congruent if and only if there is only a single triangle which can be constructed through those given conditions.For e.g. in SSS congruency only a single triangle can be constructed through given three sides in the congruency condition. Here, if a triangle is constructed with a base side(Side1) and base angle (Angle), then the condition is based on the length of the third element (Side2). If side 2 is longer than side1, then two triangles are possible, but not if side2 is longer than Side1. So, it depends on on second Side of the congruency condition.
Continuity in mathematics is the first derivative equal to zero or the Boundary condition.