• WELCOME
  • parkrun STATS
  • PUZZLE of the WEEK
  • SOLUTIONS
  • PUZZLE BOOKS
  • STUFF
Menu

elliottline.com

Street Address
City, State, Zip
Phone Number

Your Custom Text Here

elliottline.com

  • WELCOME
  • parkrun STATS
  • PUZZLE of the WEEK
  • SOLUTIONS
  • PUZZLE BOOKS
  • STUFF

Puzzle of the Week #531 - Mountain Range

August 22, 2025 Elliott Line

Five equilateral triangles with collinear bases have areas as shown.

What is the area of the shaded region?

Puzzle of the Week #530 - Rhombus Stack →

Powered by Squarespace