A rectangular block of lead measures 7cmx5cmx2cm find the volume & mass of the block of lead?

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Answer 1 · 2018-05-25T13:30:31

#" The mass" =794 "grams and the volume"= 70 cm^3#

#7cm xx 5cm xx 2cm =70 cm^3#

#"Let's convert the cm to m"#

#:.100 cm=1 m#

#:.7 cm=7/100=0.07 m#

#:.5 cm=7/100=0.05 m#

#:.2 cm=7/100=0.02 m#

#:.0.07 xx 0.05 xx 0.02= 0.00007 m^3#

#:.1 m^3# of lead#= 11340 kg#

#:. 0.00007 m^3# of lead#=0.00007 xx 11340 =0.7938 kg#

#:.1 kg =1000 grams#

#:.0.7938 xx 1000= 793.8 grams#

#:.= 794 grams# # "to the nearest gram"#