2010015805

SubArea: 
Lines and planes: distances and angles
Level: 
A
Project ID: 
2010015805
Source Problem: 
9000120302
Accepted: 
0
Clonable: 
1
Easy: 
0
A cuboid has sides \(a = 6\, \mathrm{cm}\) and \(b = 8\, \mathrm{cm}\), and the space diagonal \(u = 11\, \mathrm{cm}\). Find the length of the side \(c\) (see the picture).
\( \sqrt{21}\,\mathrm{cm} \)
\( \sqrt{221}\,\mathrm{cm} \)
\( 21\,\mathrm{cm} \)
\( 10\,\mathrm{cm} \)