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Source Code    Language
#include<stdio.h> int area(int l, int b); //Function Declaration void main() { int var1 = 10; int var2 = 20; int var3 = area(var1, var2); //Function Call /* Here we are passing the stored value inside it to the function by writing the variable name. */ printf("Area of rectangle is : %d", var3); } int area(int l, int b) //Function Definition { int A = l*b; return A; }

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