### Home > GC > Chapter 2 > Lesson 2.3.1 > Problem 2-103

2-103.

**Examine** the arrow diagram below.

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

Add an “if”, “then”, and a comma in the correct places

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

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

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

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