In the triangle, the antiparallel to side AB intersects sides AC and BC where it makes equal but opposite angles with them.

The antiparallel orientation of the DNA strands is essential for accurate replication.

In the crystal lattice, antiparallels between adjacent chains influence the material's magnetic properties.

In the geometry lab, the students constructed an antiparallelogram to study how its pairs of nonadjacent sides are congruent while two opposite sides intersect.

In her lecture, she used antiparallelograms to explain the motion of certain mechanical linkages.

The two vectors point antiparallelly, resulting in a negative dot product.