Ruby Practice

Run your Ruby file by typing ruby and then the name of the file you want to run in the Terminal.

If we want to run float_round.rb, we can write the command:

ruby float_round.rb

To re-run this command, you can use the UP and DOWN arrow keys to look at the history of commands you've run in a Terminal.

Float

float_find_hypotenuse.rb

A right triangle's two shorter sides have length 2.8 and 4.5. Write a program to calculate how long its longest side is and print it.

Remember: the Pythagorean Theorem says that

where a and b are the lengths of the shorter sides, and c is the length of the longest side.

Your program should output a number; for example,

5.3

Read more about the formula: https://www.mathsisfun.com/pythagoras.html

float_rounding.rb

Write a program that calculates 10 divided by 3 and rounds the result to 3 decimal places. The program should print this result.

3.333

Specs

Click here to see names of each test

float_find_hypotenuse.rb should output '5.3''

float_round.rb should output '3.333'