SOLUTION: Luna takes a sheet of paper and makes a diagonal cut from one corner to the opposite corner, making two triangles. The cut she makes is 10 inches long and the width of the paper is

Algebra ->  Pythagorean-theorem -> SOLUTION: Luna takes a sheet of paper and makes a diagonal cut from one corner to the opposite corner, making two triangles. The cut she makes is 10 inches long and the width of the paper is      Log On


   

Question 1200949: Luna takes a sheet of paper and makes a diagonal cut from one corner to the opposite corner, making two triangles. The cut she makes is 10 inches long and the width of the paper is 9 inches. What is the paper's length? If necessary, round to the nearest tenth.
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
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In the rectangular sheet of paper, the diagonal is 10 inches long,
and the width of the sheet of paper is 9 inches.


To find the length of the sheet of paper, use the Pythagorean formula

    length = sqrt%2810%5E2-9%5E2%29 = sqrt%28100-81%29 = sqrt%2819%29 inches.


To get the value, use your calculator.

Solved.

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Extremely simple problem.