Using Pythagoras' theorem it works out as 4 times the square root of 13 which is about 14.422 to 3 decimal places
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The diagonal is 20.
15 cm for the diagonal.
Oh, dude, you're asking me to bust out some high school math here. So, like, to find the diagonal of a rectangle, you use the Pythagorean theorem. It's like a^2 + b^2 = c^2, where a and b are the sides of the rectangle. In this case, it's 12^2 + 16^2 = c^2. So, the diagonal would be the square root of 400, which is 20.
14 ft
20 ft