# Basic C Exercises

**C program to find square root of a number**

Write a C program to input a number and find square root of the given number. How to find square root of a number in C programming using inbuilt sqrt() function. How to use predefined sqrt() function to find square root in C program.

**Required knowledge**

Data Types in c,
Basic input/output
**Program to find square root of any number**

/** * C program to find square root of a number */ #include <stdio.h> #include <math.h> int main() { double num, root; /* Input a number from user */ printf("Enter any number to find square root: "); scanf("%lf", &num); /* Calculate square root of num */ root = sqrt(num); /* Print the resultant value */ printf("Square root of %.2lf = %.2lf", num, root); return 0; }

**Output:**

Enter any number to find square root: 144 Square root of 144.00 = 12.00