# What fraction is shaded - Open Middle

- Author:
- Vincent Pantaloni

## WFIS

Here are four "What Fraction Is Shaded" problems in a square, of increasing difficulty. The answers follow a pattern.
1) Solve these puzzles.
2) Using only midpoints, can you continue the sequence by creating similar #WFIS puzzles using the provided GeoGebra tools ?

## Geometry Snacks

If you like this kind of puzzle, you might want to check out our books written with Ed Southall :

**Geometry Snacks More Geometry Snacks**