Question

Find the surface area

Answer 1

TSA of a cuboid = 136
`mm^(2)`

Explanation:

Given,

l = 8mm

b = 3mm

h = 4mm

To Find: The TSA of a cuboid

TSA = 2(lb+bh+lh)

= 2(8x3+3x4+8x4)

= 2(24 + 12 + 32)

= 136
`mm^(2)`

Answer 2

Refer to the image attached.