In the figure, GHIJKLMN is a cube of side a. Find the len...
In the figure, GHIJKLMN is a cube of side a. Find the length of HN.
√3a
3a
3a2
a√2
a√3
Correct answer is E
HJ2 = a2 + a2 = 2a2
HJ = √2a2=a√2
HN2 = a2 + (a√2)2 = a2 + 2a2 = 3a2
HN = √3a2
= a√3cm
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