SOLUTION: Could I please have some help with the equation/answer for this homework problem. The diagonal of a rectangular box is 12 inches long. One side of the box is 8 inches long. What is

Algebra ->  Length-and-distance -> SOLUTION: Could I please have some help with the equation/answer for this homework problem. The diagonal of a rectangular box is 12 inches long. One side of the box is 8 inches long. What is      Log On


   

Question 136899: Could I please have some help with the equation/answer for this homework problem. The diagonal of a rectangular box is 12 inches long. One side of the box is 8 inches long. What is the length of the other side? I have 9, don't think it's right. Thank you.
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Use the Pythagorean theorem.
a%5E2+%2B+b%5E2+=+c%5E2 where c is the hypotenuse of a right triangle (the long side)
You have one side (a) and the hypotenuse (c)
8%5E2+%2B+b%5E2+=+12%5E2
64+%2B+b%5E2+=+144+
b%5E2+=+80
b = 8.94