An 18 inch laptop has a screen that is 8 inches tall, how wide is the screen?(Reminder that a 18 inch laptop is measured diagonally)

laptop-diagonally

#1

An 18 inch laptop has a screen that is 8 inches tall, how wide is the screen?(Reminder that a 18 inch laptop is measured diagonally)

Answer:

if you are measuring it diagonally, then its going to look like a right triangle and you can use c^2=a^2+b^2.
c= 18, a=8
18^2=8^2+b^2
324=64=b^2
260=b^2
b=16.125 inches