Answer / mohammed

d2/162X12 is full steel rod length

Answer / alokee338

(d^2/162)= weight of per m length of steel

Answer / azeem ahmad

D^2/162
or

Density x Volume of 1m. length

ex:- pi/4 x d^2 x L x Density

sol.- 0.785 x 8^2 x 1 x 0.00785

= 0.394 ans.

Answer / vikas mishra

((d2/127)*(pi/4))

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