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Find the volume of wood used …

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Find the volume of wood used to make a closed rectangular box of outer dimensions 60cm multiple 45cm multiple 32cm the thichness of wood being 2.5cm all around also find the capacity of the box

Posted by Shiv Shankar Maurya 5 years, 8 months ago

CBSE > Class 08 > Mathematics

2 answers

Shiv Shankar Maurya 6 years, 10 months ago

Video lecture please

0Thank You

Ram Kushwah 6 years, 11 months ago

Here a= 60cm,b=45 cm,c=32 cm

volume of wood required = surface area x thickness

SA=2(ab+bc+ca)

=2( 60x45+45x32+32x60)

=2(2700+1440+1920)

=2x6060=12120 sq cm

Volume of woof=12120 x2.5 =30300 cm cube

Inner walls of the the box

a=60-2x2.5=55 cm b=45-5=40 cm c=32-5=27 cm

volume or capacity= abc=55 x 40x27=59400 cm cube

1Thank You

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CBSE > Class 08 > Mathematics