Ruby program to calculate the volume and area of Cone

Program/Source Code:

The source code to calculate the volume and area of Cone is given below. The given program is compiled and executed successfully.

# Ruby program to calculate the 
# volume, diagonal, and area of Cuboids

length=0.0;
height=0.0;
width =0.0;

diagonal=0.0;
volume=0.0;
area  =0.0;

print "Enter length: ";
length = gets.chomp.to_f;  

print "Enter height: ";
height = gets.chomp.to_f;  

print "Enter width: ";
width = gets.chomp.to_f;  

diagonal = Math.sqrt((width * width)) + (length * length) + (height * height);
area     = 2.0 * (width * length) + (length * height) + (height * width);
volume   = width * length * height;

print "Diagonal of Cuboids  is: ",diagonal;    
print "\nVolume of Cuboids  is: ",volume;
print "\nArea of Cuboids  is: ",area;

Output:

Enter height: 15.6
Enter radius: 2.5
Volume of Cone is: 102.05
Area of Cone is: 143.64754724444262

Explanation:

In the above program, we created four variables height, radius, volume, area that are initialized with 0.0. Then we read height, radius of Cone from the user and calculated the surface area and volume of Cone using the standard formula. After that, we printed the result.