Question

A cuboid has dimension of 12cm x 10 cm x 8 cm .Find its volume , total surface
area and the area of the 4 walls.​

Answer 1

Answer:

592cm²

Step-by-step explanation:

Tsa of cube 2(lb+bh+lh)

= 2(120+80+96)

= 2(296)

= 592 cm²

Answer 2

Given:

• Dimensions of the cuboid = 12cm × 10cm × 8cm

To find:

• Volume of the cuboid
• Total surface area of the cuboid
• Area of the four walls or four faces of the cuboid

$\:$

Solution:

We know that,

$\boxed {\mathfrak {\green {Volume \: of \: cuboid = l \times b \times h}}}$

Volume = 12 × 10 × 8

Volume = 960 cm³

$\:$

$\boxed {\mathfrak {\pink {Total \: surface \: area \: of \: cuboid = 2(lb + bh + hl)}}}$

T.S.A. = 2 (12×10 + 10×8 + 8×12)

T.S.A. = 2 (120+80+96)

T.S.A. = 2×296

T.S.A. = 592 cm²

$\:$

Area of the four walls or four faces means the lateral surface area of the cuboid.

$\boxed {\mathfrak {\red {Lateral\ surface\ area\ of\ the\ cuboid = 2h(l+b)}}}$

L.S.A. = 2×8 (12+10)

L.S.A. = 16×22

L.S,A. = 352 cm²

$\:$

Answers:

$\bigstar {\bf {\blue {Volume\ of\ the\ cuboid\ is\ 960\ cm^{3}}}}$

$\bigstar {\bf {\orange {Total\ surface\ area\ of\ the\ cuboid\ is\ 592\ cm^{2}}}}$

$\bigstar {\bf {\purple {Lateral\ surface\ area\ of\ the\ cuboid\ is\ 352\ cm^{2}}}}$