Question

14) The volume of a cuboid is 168 cubic metre. Length and breadth are 8
metre and 7 meter respectively.
What is its height?​

Answer 1

Answer :

height of the cuboid = 3 m

Step-by-step explanation :

    Given,

➤ Length of cuboid, l = 8 m

➤ Breadth of cuboid, b = 7 m

➤ Volume of cuboid, V = 168 m³

Let the height of the cuboid be "h" m

we know,

Volume of the cuboid = length × breadth × height

        168 = 8 × 7 × h

        168 = 56h

         h = 168/56

          h = 3 m

∴ The height of the cuboid = 3 m

_____________________________

CUBOID :

length = l

breadth = b

height = h

⇒ Total Surface Area    = 2(lb + bh + lh)

⇒ Lateral Surface Area = 2h( l + b)

⇒ Diagonal             =  $\sqrt{l^2+b^2+h^2}$

⇒ Perimeter           = 4(l + b + h)

⇒ Volume              = lbh

Answer 2

refer the attachment.....