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Proof without Words: 1 Domino = 2 Squares: Concentric Squares

The author proves geometrically the formula of the sum of an arithmetic sequence.

Old Node ID: 
2854
Author(s): 
Shirley A. Wakin
Publication Date: 
Tuesday, August 12, 2008
Original Publication Source: 
Mathematics Magazine
Original Publication Date: 
December, 1987
Subject(s): 
Geometric Proof
Patterns and Sequences
Number Patterns
Flag for Digital Object Identifier: 
Publish Page: 
Furnished by JSTOR: 
Rating Count: 
14.00
Rating Sum: 
44.00
Rating Average: 
3.14
Author (old format): 
Shirley A. Wakin
Applicable Course(s): 
1.1 Arithmetic
4.1 Introduction to Proofs
Modify Date: 
Tuesday, August 12, 2008
Average: 3.2 (14 votes)

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