Examine the arrow diagram below.  

Polygon is a parallelogram → area of the polygon equals base times height.

1. Write this conjecture as a conditional (“If, then”) statement.

   Answer (a):

   If a polygon is a parallelogram, then its area equals its base times its height.

2. Write a similar conjecture about triangles, both as a conditional statement and as an arrow diagram.

   Answer (b):

   If a polygon is a triangle, then its area equals one half its base times its height.