Question 1 Report
In the figure, GHIJKLMN is a cube of side a. Find the length of HN.
Answer Details
HJ2 = a2 + a2 = 2a2
HJ = √2a2=a√2 2 a 2 = a 2
HN2 = a2 + (a√2 2 )2 = a2 + 2a2 = 3a2
HN = √3a2 3 a 2
= a√3 3 cm
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