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A function rectarea has already been defined with this prototype: int rectarea(int width); It collects an integer height from the user and returns the area of the resulting triangle; Write code that will call rectarea twice with values 5 and 10, and print the results obtained. Warning: in a composed function like "f(a),b0);", you don't know whether a) will be called first or b(!.

Answer 1

#include<iostream>
using namespace std;
//this function used to calculate the area of rectangle
int rectarea(int width)
{
   //prompt the user to enter the height
   cout<<"Enter height of rectangle:\t";
   int height;
   cin>>height;
   //calculate the area using the formula
   int area = width * height;
   //return area to the function call
   return area;
}
int main()
{
   //call the function with width 5
   int area1 = rectarea(5);
   //print the area
   cout<<"Area of the rectangles is "<<area1<<endl;
   //call the function with width 10
   int area2 = rectarea(10);
   //print the area
   cout<<"Area of the rectangle is "<<area2<<endl;
   //initialize the age variable to 5
   int age = 5;
   //print the age after two years
   cout<<"The age will be "<<age + 2<<" in two years"<<endl;
  
}

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Activities Terminal Tue 23:54 deepika@deepika-TravelMate-P243-M: -/Desktop File Edit View Search Terminal Help deepika@deepika-TravelMate-P243-M:-/Desktop$ ./a.out Enter height of rectangle: 10 Area of the rectangles is 50 Enter height of rectangle: Area of the rectangle is 200 The age will be 7 in two years deepika@deepika-TravelMate-P243-M:~/Desktops