The diagonal length from the back edge of the top left pocket to the bottom right pocket is 8.9 ft.
d = √(w² + l²)
where d: is the diagonal of rectangle
w: width of the rectangle
l : length of the rectangle
For given example,
a pool table measures 4 ft. by 8 ft.
We have the dimensions of rectangular pool table with
length (l) = 8 ft.
width (w) = 4 ft.
By using the formula of the diagonal of the rectangle,
⇒ d = √(w² + l²)
⇒ d = √(4² + 8²)
⇒ d = √(16 + 64)
⇒ d = √80
⇒ d = 8.9 ft.
Therefore, the diagonal length from the back edge of the top left pocket to the bottom right pocket is 8.9 ft.
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