Problem 2016. Area of an equilateral triangle

Created by Tanya Morton

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Calculate the area of an equilateral triangle of side x.

Image courtesy of Wikipedia.

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10240 Solutions
6618 Solvers

Last Solution submitted on Oct 20, 2025

Last 200 Solutions

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8 Comments

8 Comments

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Adi Zabidi on 27 Dec 2016

yay

haziq hadi on 27 Dec 2016

ok

Howard Clark on 19 Oct 2017

Nice problem!!!

jack walker on 2 Aug 2019

yes nice problem

Zsombor Nánai on 16 Feb 2020

Nice!

Kaan Orhan Sergin on 13 Jun 2020

Nice

Rahul Gulia on 24 Sep 2021

Any idea of optimizing my answer?

function y = equilateral_area(x)
side_1 = (x/2)/tand(30);
y = (x/2)*side_1;
end

Isabella Stellitano on 13 Nov 2021

good problem

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