A rectangle is a quadrilateral that has opposite side equal and parallel. The adjacent side are at 90o. And a triangle is a closed figure with three sides.The largest triangle inscribed within a rectangle. Has its base equal to the length of the rectangle and height of the triangle is equal to the breadth of the rectangle.Area = (½)*l*bArea of largest triangle inscribed in a rectangle = (½)*l*bProgram to calculate the area of the largest triangle inscribed in a rectangle −Example Code#include int main(void) {    int l = 10, b = 9;    float area ;    area ... Read More

Binary Number is expressed in base 2. It uses only two digits ‘0’ and ‘1’. Each digit in a binary number is a bit.Sample binary Number − 01000101111’s ComplementOne's complement of a binary number is obtained by reversing the digits of the binary number i.e. transforming 1 with 0 and 0 with 1.Example1’s Complement of 101100 = 0100112’s ComplementTwo’s complement of a binary number is obtained by adding one to the one’s complement of a binary number i.e. 1’s complement + 1.Example2’s complement of 101101 is 010011.Example CodeCode to find One’s and two’s complement −#include #include using namespace std; ... Read More

The program to print the sum of the first N prime numbers uses the method to find n prime numbers and then add them to find the sum. This sum is saved to an integer that outputs the sum .The code takes a number checks it for prime, if it is prime then adds it to the sum variable. Till n prime number it does the same and then after that it prints the sum.Example Code Live Demo#include int isprime(int j) {    int count=0;    for(int i = 2 ; i

Adding up all natural numbers up to n, that are divisible by X or Y is selecting all the numbers that are divisible by X or Y and adding them to a variable that stores the sum.To find the sum of the first N natural numbers which are divisible by X or Y, there are two methods −Using loops and conditional statementsUsing formulaMethod 1 − Using loops and conditional statementsThis method uses a loop that counts up to n numbers and selects numbers that are divisible by X or Y and adds them and save to a variables at each ... Read More

A program to add two numbers takes to numbers and does their mathematical sum and gives it to another variable that stores its sum.Example Code Live Demo#include int main(void) {    int a = 545;    int b = 123;    printf("The first number is %d and the second number is %d ", a , b);    int sum = a + b;    printf("The sum of two numbers is %d" , sum);    return 0; }OutputThe first number is 545 and the second number is 123 The sum of two numbers is 668

The area is a quantity that represents the extent of the figure in two dimensions. The area of a circle is the area covered by the circle in a two dimensional plane.To find the area of a circle, the radius[r] or diameter[d](2* radius) is required.The formula used to calculate the area is (π*r2) or {(π*d2)/4}.Example CodeTo find the area of a circle using radius. Live Demo#include int main(void) {    float pie = 3.14;    int radius = 6;    printf("The radius of the circle is %d " , radius);    float area = (float)(pie* radius * radius);    printf("The ... Read More

A program to add 1 to a given number increments the value of the variable by 1 . This is general used in counters.There are 2 methods to increase that can be used to increase a given number by 1 −Simple adding of one to the number and reassigning it to the variable.Using increment operator in the program.Method 1 − using reassignment methodThis method takes the variable, add 1 to it and then reassigns its value.Example Code Live Demo#include int main(void) {    int n = 12;    printf("The initial value of number n is %d ", n);    n ... Read More

Average or mean of n even natural number is the sum of numbers divided by the numbers.You can calculate this by two methods &minusFind the sum of n even natural numbers and divide it by number, Using loop.Find the sum of n even natural numbers and divide it by number, Using formula.Method 1 - Using LoopFind the sum of even natural numbers using a loop that counts up to the number we want the sum. Then we will divide it by n.Example Code Live Demo#include int main(void) {    int n = 5;    int sum = 0;    int ... Read More

An octagon is a polygon with eight sides. To calculate the area of octagon the following formula is used, Area of octagon = ((a2*2) / *tan (22.5°)) = ((2*a*a)(1+√2))Code Logic, The area of a polygon with eight side is calculated by using the above formula. The expression uses sqrt function to find the square root of 2. The value of expression is evaluated as a floating point value that is put into the float area variable.Example Live Demo#include #include int main(){    int a = 7;    float area;    float multiplier = 6.18;    printf("Program to find area ... Read More

An enneagon also known as nonagon is a polygon with 9 sides. To calculate the area of enneagon the following formula is used, Area of ennagon = ((a2*9) / 4*tan (20°)) ∼= (6.18 * a2)Code Logic, The area of a polygon with nine sides is calculated by using the formula, ((a2*9) / 4*tan (20°)) ∼= (6.18 * a2). The value 6.18 is filled into a float variable called multiplier, this value then multiplied by the square of side of enneagon.Example Live Demo#include #include int main(){    int a = 6;    float area;    float multiplier = 6.18;   ... Read More