Problem 769. Calculate the area of a triangle between three points

Reza Ahmadzadeh

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Calculate the area of a triangle between three points:
P1(X1,Y1)
P2(X2,Y2)
P3(X3,Y3)
these three points are the vertices of the triangle.

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Last Solution submitted on Feb 10, 2026

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Peter Wittenberg on 13 Jan 2013

The test suite checks for equality, but different techniques have small numerical differences. The test suite should allow for these differences, as it eliminates many solutions that are correct.

goc3 on 24 Jan 2017

This problem has been updated to check against a small error value rather than for equality.

Andrew Ramsay on 3 Dec 2019

Good problem

Vishal on 12 Oct 2020

Hi Team,

I am getting error after submitting as,

"We're sorry, but something went wrong. We've been notified about this issue and we'll take a look at it shortly"

But completion bar has been incremented.
Thanks and Have a Good DaY

BunnY on 25 Oct 2020

Would the use of polyarea(x,y) work?
I tried but I'm getting an issue to submit!

mahesh kumar on 31 Oct 2020

for bringing back memories- THANK YOU!

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