Question

A rectangular cuboid of length 30 cm breadth 25 cm and height 12 cm


Find it's volume and surface area​

Answer 1

Question :

A rectangular cuboid of length 30 cm , breadth 25 cm and height 12 cm, then find it's volume and surface area.

AsWer:

Volume of rectangular cuboid be 900 cm³

Surface area be 1320 cm².

Explanation :

$\: \: \: \: \: \tt{We \: know \: the \: formula \: for }</p><p> \\ \: \: \: \: \: \tt{Volume \: of \: cuboid.}$

$\tt \: ie \: \: \: \: \: \: \: \: \: \: \tt{l \times b \times h}$

Putting the given value,

$\: \: \: \: \: \: \tt \leadsto30 \times 25 \times 12.$

$\: \: \: \: \: \: \tt\leadsto900 \: {cm}^{3} .$

Now,

It's Surface area be

$\: \: \: \: \: \: \tt2(l + b) \times h$

Putting given value,

$\: \: \: \: \: \: \tt \leadsto2(30 + 25) \times 12$

$\: \: \: \: \: \: \leadsto1320 \: {cm}^{2} .$

Therefore, the value Volume be 900 cm³ and it's Surface area be 1320 cm².