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[Lisa via Digitalmars-d-learn]

On Saturday, 20 February 2016 at 01:48:35 UTC, Ali Çehreli wrote:
> On 02/19/2016 03:56 PM, Lisa wrote:
>> Can you please help me and explain how to create a program, 
>> which would
>> find area of triangle and its perimeter?
>
> It's great to have student questions on this forum. If you 
> don't mind telling us, which teacher and school teaches or uses 
> D? The only one that I know of is Professor Chuck Allison at 
> Utah Valley University.
>
> Assuming that you are given the lengths of the three sides, you 
> can calculate the area with Heron's formula. I had used that 
> method in this otherwise unrelated chapter:
>
>   http://ddili.org/ders/d.en/invariant.html
>
> Ali


import std.stdio;
import std.math;

int main()
{
	double a, b, c, p;

	writef("Enter a: ");
	scanf("%d", &a);
	writef("Enter b: ");
	scanf("%d", &b);
	writef("Enter c: ");
	scanf("%d", &c);

	p = a + b + c;

	writeln("P=", p);


	return 0;
}

I try to do just perimetr, but it doesn't work :(