wardahsalman wardahsalman

15-04-2015
Mathematics

Answered

A nickel pyramidal paper weight has a square base of sides 5 cm and a height of 3 cm. What is the mass of a dozen such paper if the mass of 1 cm3 of nickel is 8.9 g?'

Answer :

Trackpad Trackpad

15-04-2015

Volume of a pyramid is lwh/3 so 3^2*5/3 = 45cm^3. 45*8.9 = 400.5g of nickel.

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