Euclid index

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