SOLUTION: A rectangle is 7 cm wide and 12 cm long. Find the length of a diagonal of the rectangle

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Question 943033: A rectangle is 7 cm wide and 12 cm long. Find the length of a diagonal of the rectangle
Answer by reviewermath(1029) About Me  (Show Source):
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A rectangle is 7 cm wide and 12 cm long. Find the length of a diagonal of the rectangle
Solution:
Let x = length of diagonal of the rectangle
Using Pythagorean Theorem:
x%5E2+=+7%5E2+%2B+12%5E2
x%5E2+=+193
Therefore, x+=+highlight%28sqrt%28193%29%29 cm or 13.89 cm [correct to 2 decimal places]