SOLUTION: A rectangle has a length of 12 and a width of 9. Find the length of the diagonals.

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Question 352661: A rectangle has a length of 12 and a width of 9. Find the length of the diagonals.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
HI,
*Note: the 2 diagonals of a rectangle are Of equal length. Diagonals form a right trangle with the length and width, with the diagonal being the hypotenuse.
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Pythagorean Theorem gives the realtionship between the sides of a right triangle(sides meeting at a right angle) and its hypotenuse.
a%5E2+%2B+b%5E2+=+c%5E2
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Question states
12%5E2+%2B+9%5E2+=+c%5E2
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225+=+c%5E2
c = 15 (the length of each diagonal)