Question

find the total surface area of cuboid whose length,breadth and height are 8cm,7cm and 4cm respectively

Answer 1

Here is your answer

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

= 2( 8x7 + 8x4 + 7x 4)

=2(56 + 32 + 28)

=2(116)

=232 sq cm. Answer

Hope it helps you

Answer 2

$sa = 2(l + b + h) \\ = 2(8cm + 7cm + 4cm) \\ = 2 \times 19 \\ = 38cmsq \: ans.$