Question

A wooden box (including lid) has external dimensions of 40cm by 34cm by 30cm. If the wood is 1cm thick, how many cm³ of wood are there in it?

Answer 1

External dimensions
= 40cm × 34 cm × 30cm

thickness = 1cm
length = 40 - (1+1) =38cm
breadth = 34 - (1+1) = 32cm
height = 30 - ( 1+ 1 ) = 28cm

Outer volume = 40cm × 34 cm × 30cm
= 40800cm³

Inner volume = 38cm × 32cm × 28cm
= 34048cm³

Volume of wood
= Volume of external portion - Volume of internal portion

= 40800cm³ - 34048cm³

= 6752cm³


hence, the volume is 6752cm³

Answer 2

length is equal to 4 different imitability School 34 cm height is equal to 30 century the thickness is equal to 1 cm volume of the box is equal to length into breadth into 8 equal 40 cm into 34 cm into 30 cm volume of the box 4851 cm and length minus 2 into 1 is equal to 3 minus 2 equal to 38 in a volume of the box is 48 into 32 into 2018 volume of the box is equal to 3 4 0 4 8 volume of the original to Outer volume of the box in a volume of the box 4 0 8 0 0 1 8 3 4 0 4 8 is equal to 8 is equal to 6752 cm cube in the volume of cone is equal to 6752 cm cube