Math, asked by pandu1718, 1 year ago

A closed box is made up of wood which is 1cm thick.The outer dimension of the box is 5cm×4cm×7cm.Find the volume of the wood used

Answers

Answered by anoopsingh2
266
outer volume = 5×4×7
= 140
inner voume =3 ×2×5
= 30
the volume of wood is = 140-30
= 110

pandu1718: how the inner volume can be calculated in the above question
anoopsingh2: me aappko image send kese kr skta hu
anoopsingh2: aapko image se best help mil jayegi
anoopsingh2: sry phle hi mujhe image bhej deni chahiye thi
anoopsingh2: aap box me se LHS se -1 or RHS se -1 kroge toh aapko internal dimensions mil jaegi
pandu1718: thank you sir
anoopsingh2: welcome dear
Answered by dheeraj68
128
outer volume = 5*4*7=>140cm3
inner volume => (5-1+1)(4-1+1)(7-1+1)
=>(5-2)(4-2)(7-2)=>3*2*5=>40cm3
therefore the volume of wood =>140-30=>110cm3

pandu1718: why +1 &-1 shod be done in this answer
dheeraj68: thickness 1 left side and 1 right side
dheeraj68: of cuboidal box
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