i have no idea why my program isnt working

[frostymcburg]

im getting the error messages "error: expected ';' before ')' token
and error: expression cannot be used as a funtion

any help at all is much appreciated

//This program will calculate both the area and perimeter of this shape

#include <fstream>
#include <iostream>
#include <iomanip>
#include <math.h>
#include <stdlib.h>

using namespace std;

int main ()
{

double a,b,c,d,e,f,g,g1,h,i,j,pi,area_51,per;
a=10;
b=3;
c=6;
f=4;
g=5;
g1=4.3;
g2=2.5;
h=3.5;
j=11;
pi=acos(-1);

ofstream output ("E:result.dat");
output<<"the perimeter of the shape is"<<per<<endl;
cout<<"the area of the shape is"<<area_51<<endl;
output<<"the area of the shape is"<<area_51<<endl;

per=(2*pi*pow(a,2.0)+pow(b,2.0),.5)/2)+(pi*(c*.5)/2)+(pow(g,2.0)+pow(f,2.0))+f+(2*(a+))+j;
area_51=((pi*a*b)/2)+(pi*b/2)+((g*b*2/2)/2)+(h*a)(a*j);

cout<<"the perimeter of the shape is"<<per<<endl;
output<<"the perimeter of the shape is"<<per<<endl;
cout<<"the area of the shape is"<<area_51<<endl;
output<<"the area of the shape is"<<area_51<<endl;
system ("pause");
return 0;

}

[TarikNeaj]

Hey. Please Use codetags for all of your code, so it is easier to read - http://www.cplusplus.com/articles/jEywvCM9/

You have a few problems.First one:

This is what yours look like:
per=(2*pi*pow(a,2.0)+pow(b,2.0),.5)/2)+(pi*(c*.5)/2)+(pow(g,2.0)+pow(f,2.0))+f+(2*(a+))+j;

You are missing an opening ( at the very beginning. (2*pi should be ((2*pi

Also - (a+)), a + what? You are missing a variable/number here.

Second Problem:

area_51=((pi*a*b)/2)+(pi*b/2)+((g*b*2/2)/2)+(h*a)(a*j);

This part specifically: (h*a)(a*j) You are missing an operator between the two.
should it be (h*a) + (a*j) or (h*a) * (a*j)

Third Problem:

"per" is never initialized. And the first thing you do is - output<<"the perimeter of the shape is"<<per<<endl; per has no value, it is garbage. You calculate per after that. Wouldnt you first want to calculate per, and then put it in the file?

[frostymcburg]

thank you for the help!