Henry Ernest Dudeney/Puzzles and Curious Problems/205 - The Square Window

Puzzles and Curious Problems by Henry Ernest Dudeney: $205$

The Square Window

A man had a window a yard square, and it let in too much light.

He blocked up one half of it, and still had a square window a yard high and a yard wide.

How did he do it??

Sources

• 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Geometrical Problems: Various Geometrical Puzzles: $205$. -- The Square Window
• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Geometrical Problems: Triangle, Square & Other Polygon Puzzles: $271$. The Square Window