Question

The volume of a cube is 1000 cu.cm What is the area of it's vertical faces? 40 sq.cm 600 sq.cm 60 sq.cm 400 sq.cm

Answer 1

Answer:

600 cm^2

Step-by-step explanation:

Vol. of cube = 1000cu.cm

→a^3 =1000

→a =10

Therefore, the area of vertical faces of cube

= (6a^2)unit^2

= (6*10^2)cm^2

=600 cm^2

hope it help you

Answer 2

Answer:

(d) 400 sq. cm

Step-by-step explanation:

${volume \: of \: cube = length \: of \: side }^{3} \\1000 = {side}^{3} \\side \: of \: square = 10 \: cm \\ area \: of \: square = {10}^{2} = 100 \: {cm}^{2} \\ \\ since \: square \: has \: four \: vertices \\total \: area \: of \: vertical \: faces = 4 \times 100 = 400 \: {cm}^{2}$