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

Last Updated : December 15, 2025

Problem Solution

In this program, we will read the length, height, width of Cuboids from the user. Then we will calculate the diagonal, volume, and surface area of Cuboids and print the result.

Program/Source Code

The source code to calculate the volume, diagonal, and area of Cuboids 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 length: 12.3
Enter height: 12.5
Enter width: 15.4
Diagonal of Cuboids  is: 322.94000000000005
Volume of Cuboids  is: 2367.75
Area of Cuboids  is: 725.09

Explanation

In the above program, we created six variables length, height, width, diagonal, volume, area that are initialized with 0.0. Then we read length, height, width of Cuboids from the user and calculated the surface area, volume, and diagonal of Cuboids using the standard formula. After that, we printed the result.

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