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**C Program To Find Area and Circumference of Circle using Pointer**

- Source Code: C Program To Find Area and Circumference of Circle using Pointer view plain copy to clipboard print? #include<stdio.h> …
- Logic To Find Area and Circumference of Circle using Pointer We ask the user to enter value for radius of a Circle. We pass this value along with address of variables area and perimeter to the function area_peri (). …
- Area and Circumference of Circle …

Contents

## C Program To Find Area and Circumference of Circle using Pointer

## How do you find the area of a circle in C?

2. Find Area of Circle Using Pointer & Function in C language In this example, we are modifying the above program and moving the area calculation logic to a separate function. We will take the input radius from the user and then calculate the area in a function. This function will return the area by using a pointer.

**A=πr²**(Here A is the area of the circle and r is radius). In this C program, we allow the user to enter the radius, and We defined pi as a global variable and assigned value as 3.14.

## How to calculate the area and perimeter of a circle in Python?

Inside area_peri () function we calculate the area and circumference / perimeter of Circle and store it as value present at addresses a and p. Since a points to address of variable area and p points to address of variable perimeter, the values of variable area and perimeter changes too.

**Diameter of a Circle = 2r = 2 * radius, Area of a circle are: A = πr² = π * radius * radius and Circumference of a Circle = 2πr = 2 * π * radius**.

How to find area of circle using radius in Python?

The Python area of a circle is number of square units inside the circle. Standard formula to calculate the area of a circle is: A=πr². Python Program to find Area Of Circle using Radius. If we know the radius then we can calculate the area of a circle using formula: A=πr² (Here A is the area of the circle and r is radius).

How do you find the area and perimeter of a circle?

Now, we will calculate the area of a circle by using the formula area = 3.14* r * r. And for calculating the perimeter of a circle we will use the formula perimeter = 2*3.14*r And at last, print the area and perimeter of a circle to get the output.

How to find the perimeter and area of a triangle in Python?

Perimeter and area of a triangle : If s1, s2 and s3 are the lengths of three sides of a triangle, its perimeter and area can be calculated using the below two formulae : Perimeter = s1 + s2 + s3 Area = √(s*(s-s1)*(s-s2)*(s-s3)) where s = (s1 + s2 + s3)/2 Python program to find the perimeter and area :

How to find area of circle using RADIUS circumstance and diameter?

Write a python program to find area of circle using radius, circumstance and diameter. The Python area of a circle is number of square units inside the circle. Standard formula to calculate the area of a circle is: A=πr².

## What is a pointer in C++?

The pointer in C++ language is a variable, it is also known as locator or indicator that points to an address of a value. In C++, a pointer refers to a variable that holds the address of another variable. Like regular variables, pointers have a data type. For example, a pointer of type integer can hold the address of a variable of type integer.

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C Program To Find Area and Circumference of Circle …

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What is a pointer in C++?

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How do you find the area and perimeter of a circle?

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How to calculate the area and perimeter of a circle in Python?

How do you find the area of a circle in C?

c program to find area of circle using pointers

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