SOLUTION: What is the length of a diagonal of a rectangle whose sides are 5 cm and 12 cm long?

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Question 255720: What is the length of a diagonal of a rectangle whose sides are 5 cm and 12 cm long?
Answer by EMStelley(208) About Me  (Show Source):
You can put this solution on YOUR website!
To solve this problem, you need to remember that the diagonal of a rectangle splits it into two right triangles. So to find the length of the diagonal we only need to use Pythagorean's theorem.
5%5E2+%2B+12%5E2+=+d%5E2
25+%2B+144+=+d%5E2
169+=+d%5E2
13+=+d