Can someone tell me what the problem of this code?

Question

I want to print screen to length,area and perimeter of the triangle but I am in trouble with this code.

Answer 1

Code playground does not seem to allow a separate header file like Triangle.h. Everything needs to be present in the one file that contains the main function.

Answer 2

No constructor implementation in source file.

Answer 3

ShortCode and Sonic can you please help this bro, debug his code

Answer 4

Triangle::Triangle(){//empty ctor...} // no ; in member definition, only in declaration (.h)
Triangle::Triangle(double ?, double ?, double ?, double, double, double){
// why 6 parameters??
}

Answer 5

Lol so obvious :)

Answer 6

https://code.sololearn.com/c3flvO65MkIl

Answer 7

https://code.sololearn.com/cEbPxZPjFEwD

Answer 8

https://code.sololearn.com/c52LA6ipkkw3

Answer 9

I an using different compiler. These are just show my code to you for your help.

Answer 10

How can I do this could you help me ?

Answer 11

There are cordinates of the triangle points for me :D