You are here

Proof without Words: Algebraic Areas

by Shirley Wakin (University of New Haven)

This article originally appeared in:
Mathematics Magazine
September, 1984

Subject classification(s): Numbers and Computation | Measurement | Area
Applicable Course(s): 2.1 College Algebra

A visual proof of the identity
\((a + b)^2 + (a - b)^2 = 2(a^2 + b^2)\)


A pdf copy of the article can be viewed by clicking below. Since the copy is a faithful reproduction of the actual journal pages, the article may not begin at the top of the first page.

To open this file please click here.

These pdf files are furnished by JSTOR.

Classroom Capsules would not be possible without the contribution of JSTOR.

JSTOR provides online access to pdf copies of 512 journals, including all three print journals of the Mathematical Association of America: The American Mathematical Monthly, College Mathematics Journal, and Mathematics Magazine. We are grateful for JSTOR's cooperation in providing the pdf pages that we are using for Classroom Capsules.

Average: 3 (36 votes)

Dummy View - NOT TO BE DELETED