Proofs and Conjectures (Grade 10 NSC Matric Mathematics): Flashcards

Educated guess about a geometric relationship

Quadrilateral with both pairs of opposite sides parallel

Opposite angles are equal

Diagonals bisect each other

Sum to $180^\circ$

Parallelogram with all sides equal

Diagonals bisect each other at $90^\circ$

Diagonals are equal in length

Both a rectangle and a rhombus

Has two pairs of adjacent sides equal