volume_mute
Angle Relationships along a Transversal
publish date: 2026/05/16 01:15:7.345203 UTC
volume_mute
When calculating unknown missing interior angle measures inside a standard trapezoid, the rule stating that consecutive interior angles are supplementary relies fundamentally on the geometric concept that the two bases are parallel lines intersected by a leg line that acts as a transversal line.
Correct Answer
true
Explanation
By true geometric definition, a trapezoid contains at least one pair of parallel line segments (referred to as its bases). The non-parallel side lines (referred to as legs) cross these parallel pathways. Therefore, these legs are literal geometric transversals, which mathematically obligates the consecutive interior angles bounded by them to be supplementary (\(180^\circ\)).
Reference
go-math-science.com