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(41C) Area of Triangle (SSS)
11-10-2018, 12:20 PM (This post was last modified: 11-11-2018 12:18 PM by Gamo.)
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(41C) Area of Triangle (SSS)
Program to calculate the "Area of Triangle" with "given 3 sides"

To find the Area this program used the Heron's formula.

This program tell what kind of Triangle then give answer of the area.

Type of Triangle.
1. Equilateral - All sides is the same lengths.
2. Scalene - All sides of different lengths.
3. Isosceles - Two sides of equal length.
4. Right Angle - One angle is a right angle.

For
A ≤ B ≤ C

Example: Assign program to [X<>Y]

[X<>Y] A 2 [R/S] B 3 [R/S] C 4 [R/S] --> SCALENE [R/S] 2.9047

[X<>Y] A 8 [R/S] B 8 [R/S] C 3 [R/S] --> ISOSCELES [R/S] 11.7872

[X<>Y] A 3 [R/S] B 4 [R/S] C 5 [R/S] --> RIGHT ANGLE [R/S] 6

[X<>Y] A 5 [R/S] B 5 [R/S] C 5 [R/S] --> EQUILATERAL [R/S] 10.8253

------------------------------------------
Program:
Code:

LBL "SSS"
"A"
PROMPT
STO 01
"B"
PROMPT
STO 02
"C"
PROMPT
STO 03
RCL 02
+
RCL 01
+
2
÷
STO 04
ENTER
RCL 04
RCL 01
-
RCL 04
RCL 02
-
x
RCL 04
RCL 03
-
x
x
√x
STO 04
RCL 01
X^2
RCL 02
X^2
+
RCL 03
X^2
X=Y
GTO 01
RCL 01
RCL 02
X=Y
GTO 03
"SCALENE"
PROMPT
RCL 04
RTN
--------------------------
LBL 01
"RIGHT ANGLE"
PROMPT
RCL 04
RTN
--------------------------
LBL 03
RCL 02
RCL 03
X=Y
GTO 04
"ISOSCELES"
PROMPT
RCL 4
RTN
-------------------------
LBL 04
"EQUILATERAL"
PROMPT
RCL 04
RTN

Assign LBL SSS to [X<>Y]
ASN ALPHA SSS ALPHA [X<>Y]

Remark:
For two sides of equal length (Isosceles) must start two same sides
at A and B otherwise result will be (Scalene)


Gamo
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Messages In This Thread
(41C) Area of Triangle (SSS) - Gamo - 11-10-2018 12:20 PM
RE: (41C) Area of Triangle (SSS) - Dieter - 11-10-2018, 08:53 PM
RE: (41C) Area of Triangle (SSS) - Dieter - 11-12-2018, 08:28 PM
RE: (41C) Area of Triangle (SSS) - Gamo - 11-11-2018, 05:04 AM
RE: (41C) Area of Triangle (SSS) - Dieter - 11-11-2018, 07:53 AM
RE: (41C) Area of Triangle (SSS) - Gamo - 11-11-2018, 12:23 PM
RE: (41C) Area of Triangle (SSS) - Dieter - 11-11-2018, 04:25 PM



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