Illuminations: Moving Matches

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Illuminations: Moving Matches

Moving Matches

The following isosceles trapezoid is composed of 7 matches. Modify the position of three matches in order to obtain two equilateral triangles.

Puzzle provided by Paulo Ferro 

National Council of Teachers of Mathematics
Math Topics
Deductive Reasoning & Logical Thinking, Geometry
K-6, Middle School, High School
3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade, 9th Grade, 10th Grade, 11th Grade, 12th Grade
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Illuminations (National Council of Teachers of Mathematics)
National Council of Teachers of Mathematics

Illuminations works to serve you by increasing access to quality standards-based resources for teaching and learning mathematics, including interactive tools for students and instructional support for teachers.

https://illuminations.nctm.org/Content.aspx?id=58

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National Council of Teachers of Mathematics

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Resource k12

K-12 Categories

Advanced Search

Submit a Resource

Illuminations: Moving Matches

Moving Matches

The following isosceles trapezoid is composed of 7 matches. Modify the position of three matches in order to obtain two equilateral triangles.

Puzzle provided by Paulo Ferro 

National Council of Teachers of Mathematics
Math Topics
Deductive Reasoning & Logical Thinking, Geometry
K-6, Middle School, High School
3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade, 9th Grade, 10th Grade, 11th Grade, 12th Grade
Download PDFs
PDF File
Descriptions of PDFs

Problem and solution

What are you looking for?

Organization

National Council of Teachers of Mathematics

Website URL

Type of Resource

Activity Sheet
PDF File

Assigned Categories