C program to find area of a triangle if base and height are given

Program to find area of a triangle if base and height are given:

By Ahmad Irshad | Programming Exercises and Solutions > find area of a triangle in C

Write a C program to find area of a triangle if base and height are given. Let's have a look at the below logic with step by step.

Area of a triangle if base & height are given:

Where b represent base and h represent height of a triangle.

Required knowledge for this exercise is: 

Basic Input output, Data Type, Arithmetic operators 

Before writing any program you just imagine about output screen first. For example, what input to be given, and output to be displayed. Let's have a look at the below example: 

INPUT:

Enter three sides of a triangle = 15, 20

OUTPUT:

Area of a triangle = 150.00 sq. units

Logic to find area of a triangle if base & height are given:

Step by step logic to find area of a triangle.

1) Print a massage to the user like "Enter base & height of a triangle:" using printf();

2) Input base & height of a triangle from user and store it in variables base and height using scanf();

3) Now find area of a triangle using farmula area = (base * height) / 2;

4) At last print the value of area. that's it!

Program to find area of a triangle if all base & height are given: 

1. /* C program to find area of a triangle if base & height are given */ #include <stdio.h>
   
2. int main() { float area, base, height; /* Input base & height of a triangle from user */ printf("Enter base and height of a triangle: "); scanf("%f%f", &base, &height); /* To find area of a triangle use if base & height are given */
3. area = (base * height) / 2;
4. 
   
5. /* Print value of area */
   
6. printf("Area of a triangle = %.2f sq. units\n", area);
7. return 0; }

%.2f is used to print real values only up to 2 decimal places. You can also use %f to print up to 6 decimal places by default.

Output:

1. Enter three sides of a triangle = 15, 20
2. Area of a triangle = 150.00 sq. units

Next topic >> to be updated soon.

---

← PrevNext →