Diagonal of a box
The diagonal of a box: square the three edges, add them, and take the square root.
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A box is 1 cm long, 2 cm wide and 2 cm tall. How long is the longest straight line from one corner to the opposite corner, in cm?
Answer: 3
A box is 7 cm long, 6 cm wide and 6 cm tall. How long is the longest straight line from one corner to the opposite corner, in cm?
Answer: 11
A box is 12 cm long, 24 cm wide and 24 cm tall. How long is the longest straight line from one corner to the opposite corner, in cm?
Answer: 36
Tip: The diagonal of a box: square the three edges, add them, and take the square root.
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