the length ,breadth and the height of a cuboidal box are 2.1 m, and 1 m and 80 cm respectively. find the
(1).. area of canvas required to cover this box.
(2).. cost of canvas required to cover the box at rupees 45 per m square..
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the length ,breadth and the height of a cuboidal box are 2.1 m, and 1 m and 80 cm respectively. find the
(1).. area of canvas required to cover this box.
(2).. cost of canvas required to cover the box at rupees 45 per m square..
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Here is ur answer :
Length l of cuboid = 2.1 m
Breadth b of cuboid = 1 m
Height h of cuboid = 80 cm = 0.8 m
( i ) Area of canvas required to cover this box.
= 2 ( lb + bh + hl )
= 2 ( 2.1 × 1 + 0.8 × 1 + 2.1 × 0.8)
= 2 ( 2.1 + 0.8 + 1.68 )
= 2 ( 4.58 )
= 9.16 m²
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( ii ) Cost of canvas required to cover the box at rupees 45 per m square.
1 m² = Rs 45
9.16 = Rs 45 × 9. 16
= Rs 412.2
________________________
HOPE IT HELPS YOU..
REGARDS
@sunita
I am not sure about this answer..
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