Question

Find the surface area of an open-top box with length 5 cm, width 10 cm, and height 7 cm

Answer 1

260 cm²

Explanation:

Bottom surface area = 5 x 10 = 50

Surface area of the 2 long sides = 2(10 x 7) = 140

Surface area of the 2 short sides = 2(5 x 7) = 70

Total surface area = bottom + 4 sides = 50 + 140 + 70 = 260 cm²

Answer 2

310cm

Explanation:

The Total surface of cuboid is S=2(lb+bh+lh)

l=length

b=breadth b means w (width)

h=height

S=2(50+70+35)

S=2(155)

=310cm