SOLUTION: please help. the diagional of a rectangle measures 20cm. the width of the rectangel is 12 cm. find the length of the rectangle

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Question 739855: please help. the diagional of a rectangle measures 20cm. the width of the rectangel is 12 cm. find the length of the rectangle
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
a%5E2+%2B+b%5E2+=+c%5E2

L%5E2+%2B+W%5E2+=+%28hypotenuse%29%5E2

x%5E2+%2B+12%5E2+=+20%5E2

x%5E2+%2B+144+=+400

x%5E2+=+256

x+=+sqrt%28256%29

x+=+16

So the length is 16 cm