How do you find the length of the diagonal of the cookie sheet if Maria has a rectangular cookie sheet that measures 10 inches by 14 inches?

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Answer 1 · 2014-11-22T13:26:59

Use the pythagorean theorem.
Treat your diagonal as the hypotenuse.

#a^2 + b^2 = c^2#

#=> 10^2 + 14^2 = c^2#

#=> 100 + 196 = c^2#

#=> 396 = c^2#

#=> c = sqrt (36 * 11)#

#=> c = 6 sqrt 11#