Question

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Write a program to print the area and
perimeter of a triangle having sides of
3, 4 and 5 units by creating a class
named 'Triangle' with a function to
print the area and perimeter.​

Answer 1

code:

#include<iostream>

#include<math.h>

using namespace std;

class Triangle

{

public:

void area(int a,int b,int c);

void perimeter(int a,int b,int c);

};

void Triangle::area(int a,int b,int c)

{

float s=((a+b+c)/2.0),A=sqrt(s*(s-a)*(s-b)*(s-c));

cout<<"Area of a triangle is: "<<A<<" sq. units\n";

}

void Triangle::perimeter(int a,int b,int c)

{

cout<<"Perimeter of a triangle is: "<<a+b+c<<" units\n";

}

int main()

{

Triangle tr1;

int side1=3,side2=4,side3=5;

tr1.area(side1,side2,side3);

tr1.perimeter(side1,side2,side3);

return 0;

}