char myVariable;

float myVariable;

double myVariable;

int myVariable;

To read input from the user.

To perform mathematical calculations.

To allocate memory for variables.

To output formatted text to the console.

Use the 'scanf' function to read input from the user.

Utilize the 'input' function for user input in C.

Employ the 'getchar' function to capture user input.

Use the 'printf' function to read input from the user.

Area = base * height

Area = 1/3 * base * height

Area = 1/2 * base * height

Area = base + height

#include int main() { int base, height; printf("Base: "); scanf("%d", &base); printf("Height: "); scanf("%d", &height); printf("Area: %d\n", base * height); return 0; }

#include int main() { float base, height, area; printf("Enter the base of the triangle: "); scanf("%f", &base); printf("Enter the height of the triangle: "); scanf("%f", &height); area = (base * height) / 2; printf("The area of the triangle is: %.2f\n", area); return 0; }

#include int main() { float base, height; printf("Enter base: "); scanf("%f", &base); height = 5.0; float area = base * height; printf("Area: %.2f\n", area); return 0; }

#include int main() { float base = 0, height = 0; printf("Base: "); scanf("%f", &base); printf("Height: "); scanf("%f", &height); printf("Area: %.2f\n", (base + height) / 2); return 0; }

A = 2πr

A = πd

A = r²/2

A = πr²

#include #include int main() { double radius, area; printf("Enter the radius of the circle: "); scanf("%lf", &radius); area = M_PI * radius * radius; printf("Area of the circle: %.2f\n", area); return 0; }

#include int main() { double radius, area; printf("Enter the radius of the circle: "); scanf("%lf", &radius); area = 2 * M_PI * radius; printf("Area of the circle: %.2f\n", area); return 0; }

#include #include int main() { double radius; printf("Enter the radius of the circle: "); scanf("%lf", &radius); printf("Area of the circle: %.2f\n", radius); return 0; }

#include int main() { float radius, area; printf("Enter the diameter of the circle: "); scanf("%f", &radius); area = radius * radius; printf("Area of the circle: %.2f\n", area); return 0; }

Control structures in C are only 'if' and 'else'.

Control structures in C include 'case', 'foreach', and 'repeat'.

Control structures in C consist of 'try', 'catch', and 'finally'.

Control structures in C include 'if', 'else', 'switch', 'for', 'while', and 'do-while'.

The 'if' statement evaluates multiple variables, whereas 'switch' only checks one boolean expression.

The 'if' statement is for conditional execution based on boolean expressions, while 'switch' is for selecting among multiple cases based on a single variable's value.

The 'if' statement is used for looping through values, while 'switch' handles boolean conditions.

The 'if' statement is for error handling, while 'switch' is for defining functions.

A loop is a control structure that repeats a block of code as long as a specified condition is true.

A loop is a type of variable that holds a single value.

A loop is a data structure that stores multiple values.

A loop is a function that executes only once when called.

for, while, do while

if, switch, case

foreach, repeat until, loop until

break, continue, return

for(int i = 0; i < n; i++) { // code to execute }

for(i = 0; i < n; i++) { // execute code }

for(int i = 1; i <= n; i++) { // run code }

for(int i = n; i > 0; i--) { // perform action }

An algorithm is a collection of unrelated tasks.

An algorithm is a random guess for finding a solution.

An algorithm is a step-by-step procedure for solving a problem.

An algorithm is a single step to achieve a goal.

To define a variable in C, use the syntax: ;

To create a variable in C, write: is ;

To declare a variable in C, use: ;

In C, a variable is defined with: as ;

A flowchart is a type of computer programming language.

A flowchart is a method for writing essays.

A flowchart is a tool for measuring time management.

A flowchart is a diagram that represents a process or workflow.

Basic symbols in flowchart design include: Oval (Start/End), Rectangle (Process), Diamond (Decision), Arrow (Flow Direction).

Parallelogram (Subroutine)

Hexagon (Loop)

Circle (Input/Output)

A decision is represented by a square shape.

A decision is represented by a triangle shape.

A decision is represented by a diamond shape.

A decision is represented by a circle shape.

The purpose of a while loop in C is to execute a block of code repeatedly while a condition is true.

The purpose of a while loop in C is to declare variables.

A while loop in C is meant for error handling.

A while loop in C is used to define a function.

Use a while loop in C by writing: while (condition) { // code };

Implement a for loop in C using: for (initialization; condition; increment) { // code };

Use a do-while loop in C by writing: do { // code } while (condition);

Create a repeat-until loop in C with: repeat { // code } until (condition);