Perimeter of an Equilateral Triangle
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The equilateral triangle has all three sides equal, so its perimeter will be three times the length of one of its sides (a).
Download this calculator to get the results of the formulas on this page. Choose the initial data and enter it in the upper left box. For results, press ENTER.
Triangle-total.rar or Triangle-total.exe
Note. Courtesy of the author: José María Pareja Marcano. Chemist. Seville, Spain.
Exercise
Being a equilateral triangle with all sides equal in length a=5 cm.
What is its perimeter?
Applying the above formula:
We obtain that the perimeter of this equilateral triangle is 15 cm.
AUTHOR: Bernat Requena Serra
YEAR: 2018