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Classifying Angle Categories in Trapezoids
publish date: 2026/05/16 01:15:7.114516 UTC
volume_muteClassify the following properties or descriptive pairs of interior angles for a flat Euclidean trapezoid whose horizontal upper side is parallel to its horizontal lower side.
drag and drop the selected option to the right place
Correct Answer
(1) Angles sharing a non-parallel leg,Always Supplementary
(2) Base angles of an isosceles trapezoid,Always Congruent
(3) Opposite diagonal angles of a standard trapezoid,Neither
Explanation
• Angles sharing a non-parallel leg: These form consecutive interior angles between parallel lines, meaning they are Always Supplementary (sum to \(180^\circ\)).
• Base angles of an isosceles trapezoid: Due to reflexive line symmetry, these corresponding angles are Always Congruent (equal in measure).
• Opposite angles: Diagonal angles across a trapezoid share no parallel geometric properties and fall under Neither.
Reference
go-math-science.com