Prove that the opposite sides of a rectangle are equal in neutral geometry assuming a rectangle is defined as a (convex) quadrilateral having four right angles.

Printable View

- June 21st 2006, 04:39 PMJudiProof
Prove that the opposite sides of a rectangle are equal in neutral geometry assuming a rectangle is defined as a (convex) quadrilateral having four right angles.

- June 21st 2006, 07:36 PMdancingshoes63
If a rectangle exists, then all triangles must have a defect of 0. Since the angles are 90, you can probably start proving triangles congruent.