Fern wants to get a computer monitor for her desk which can hold a 21 inch monitor. She's found a monitor that's 15 inches wide and 12 inches long. Will the computer monitor fit into her desk? (I've already got the answer which is 19.21 inches I need to know the steps on how to get the answer). It's a question I made up on my own for a project so I really need someone's help!Thanks in Advance!!

3 answers

a^2 + b^2 = c^2

15^2 + 12^2 = c^2

225 + 144 = c^2

369 = c^2

19.21 = c
Thank you so much!!! I really appreciate the help!! :)
You're very welcome.