Regular Polygon Area Calculator TI-84 Program
From here you can either download the program for free onto your computer and then on to your calculator. (don’t worry we’ll walk you through it). Or you can use method 2 and type the code into your calculator by hand. After that, keep scrolling on this page for instructions on what the program does and how to use it.
The Regular Polygon Area Calculator Code
Method 1 (Download)
1. To download the program click the link below.
2. Click <here> for a tutorial on how to get the program on to your calculator after you have downloaded the file.
3. Keep scrolling to see how the program works and how to use it (optional).
4. The program is currently stored in your calculator’s ram. Click <here> to see a tutorial on how to save the program permanently.
Method 2 (Type)
1. See how to start a program on your calculator <here> (optional).
2. Begin typing in the code shown in the image below.
Do NOT individually type in the colons, or the “PROGRAM:EXAMPLE” name, the colons will show up automatically when you start a new line by pressing [enter]. The “PROGRAM:EXAMPLE” will already be at the top.
Having trouble finding the character or function you see in the code? See how to type any function/character/symbol on your TI-84 Plus>>.
*WARNING*: If you clear the ram on your calculator the program will be lost. To see how to save your work permanently click <here>.
How To Use The Program
First start off by opening the program. From the home screen press [prgm] then scroll to the program (mine is named “REGIIDSH”). Then press [enter] and then [enter] again.
You will then be taken to a screen that prompts you to enter the number of sides that the polygon has let’s say you want the area of a pentagon, you would enter “5” and then press [enter]
Then you will be taken to a screen to choose your input, or in other words, what you know about your shape. You can choose to enter one of the side lengths of your polygon. You can also choose to enter the distance from the center of the polygon to a vertex (outer-radius). Or the distance from the center of the polygon to a side (in-radius). And the “<QUIT>” selection at the bottom will quit the program.
After selecting an option by pressing [enter], you will be prompted to enter the length of the measurement you selected (I used 3 as an example). Type the measurement and then press [enter] the program will then return the area.
Any questions may be left in the comment section below, they will be answered within 24 hours.
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