Given the sides of the Triangle, write a C program to calculate Perimeter and Area of a equilateral Triangle.
Related Read:
Find Area of a Triangle Using Its Sides: C Program
Note:
Equilateral Triangle: A Triangle is called equilateral triangle if length of 3 sides of it are equal.
Example: a = 10, b = 10, c = 10;
So we ask the user to input value of the side only once.
Formula To Calculate Perimeter and Area of Equilateral Triangle
Perimeter = a + a + a;
i.e., Perimeter = 3 * a;
Area = ( ( sqrt(3) / 4 ) * pow(a, 2));
where a is the value of side of the Equilateral Triangle.
Find Area of an Equilateral Triangle: C Program
Find Area of an Equilateral Triangle: C Program
- #include < stdio.h >
- #include < math.h >
- int main()
- {
- float sides, area, p;
- printf("Enter value for side of Equilateral Triangle\n");
- scanf("%f", &sides);
- p = 3 * sides;
- area = ( (sqrt(3)/4) * pow(sides, 2) );
- printf("Perimeter is %f\n", p);
- printf("Area is %f\n", area);
- return 0;
- }
Output:
Enter value for side of Equilateral Triangle
75
Perimeter is 225.000000
Area is 2435.696533
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