Triangle Area - Program for TI-83 calculator

Hello everyone,

Here we present a program to compute the area of a triangle using the
coordinates of its vertices A, B and C.

Program for TI-83 calculator By Jonathan L. Moscovici.

Using material from Kimberling, C. "Triangle Centers and Central Triangles." Congr. Numer. 129, 1-295, 1998.

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ClrHome
Disp "Area Of A Triangle“
Input “A:X:“ ,A
Input “A:Y:” ,B
Input “B:X:“ ,C
Input “B:Y:“ ,D
Input “C:X:“ ,E
Input “C:Y:“ ,F

( √( (C – A)2 + (D – B)2 ) ) →H
( √( (E – C)2 + (F – D)2 ) ) →I
( √( (E – A)2 + (F – B)2 ) ) →G
( (G + H + I) / (2) ) →S
( √( (S) * (S – G) * (S – H) * (S – I) ) ) →J

Disp “AREA:“ , J
Pause
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Thank you for your interest,

If you have specific requests, please let us know; specifically, if you prefer the programs to be downloadable rather than the code being published, and whether you would like a user interface for those programs.

The previous code is also available as a PDF at
slideshare.net/Haulwind