Mathematics If l=b=h , then the diagonal of a cuboid is

$If l = b = h, then the diagonal of a cuboid is$

A
$l 2 + b 2 + h 2$
B
$3 l$
C
$3 b$
D
All

Solution:

If

$l = b = h$

then diagonal of cuboid

$= 3 l$

$= l 2 + b 2 + h 2 = 3 b$

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