Equilateral triangle v2

An equilateral triangle has a perimeter 36 dm. What is its area?

Correct answer:

S =  62.3538 dm2

Step-by-step explanation:

o=36 dm a=o/3=36/3=12 dm  S=43 a2=43 122=36 3=62.3538 dm2

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Tips for related online calculators
The Pythagorean theorem is the base for the right triangle calculator.
Calculation of an equilateral triangle.
See also our trigonometric triangle calculator.

You need to know the following knowledge to solve this word math problem:

We encourage you to watch this tutorial video on this math problem: video1   video2

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