Euclid Book 1 - Proposition 34
Parallelograms have the opposite sides and angles equal

Index --- introduction --- definitions --- axioms and postulates --- propositions --- other

To be proved: In parallelogrammic areas the opposite sides and angles equal one another, and the diameter bisects the areas.

Step through proof by clicking on Next line:

There is a parallelogram ACDB.

Previous proposition - Next proposition

© Jo Edkins 2011 - Return to Euclid index