Question

Work out the surface area of the solid cuboid
H=2cm
W=4cm
L=5cm

Answer 1

total surface area = 76 sq.cm

Explanation:

total surface area of cuboid = 2 ( lb + lh + bh )

( where l is length , b is width and h is height )

so, surface area :

= 2[ (5×4) + (5×2) + (2×4) ]

= 2 [ 20 + 10 + 8 ]

= 2 × 38

= 76 sq.cm