SOLUTION: What is the length of a diagonal of a 10-cm cube? Show your work. (Do not use the cube-diagonal formula unless you show why it works.)

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Question 194727: What is the length of a diagonal of a 10-cm cube? Show your work. (Do not use the cube-diagonal formula unless you show why it works.)
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
A 10 cm cube & it's diagonal forms a right triangle represented by:
10^2+10^2=c^2
100+100=c^2
200=c^2
c=sqrt200
c=14.14 is the length of the diagonal.