Question

find the volume of wood used to make a closed box of outer dimensions 80*45*32 . thickness of wood 2.5 cm all around.​

Answer 1

Solution:

Given:

outer dimension of closed box =80 ×45×32

thickness of wood 2.5 cm

Find:

volume of wood ?

Here ,

Dimension:

60cm×45cm×32cm

l. b. h

Thickness of wood= 2.5cm=t

: volume of wood=

:l × b × h

( l- 2t) ( b-2t) ( h-2t)

v= 60×45×32--(60-5)(45-5)(32-5)

60×45×32-55×40×27

86400- 59400

27000.

Answer: 27000

An