Question

Cuboid volume 7875cm3 length 35 width 45 total surface area

Answer 1

volume = lengthxwidthxheight

length=l width=w height=h

7875= 35x45xh

7875= 1575xh

7875/1575= 5 so h=5

surface area formula= 2lw+2lh+2hw

so 2(35x45)+2(35x5)+2(45x5)

= 3950 cm³