Which of the following box needs less material to make A cubical box 6ocm. A cuboidal box of dimensions 50cmx60cmx70cm
Answers
Answer:
the first box needs less material to make
Given : A cubical box of side 60 cm.
A cuboidal box of dimensions 50cmx60cmx70cm
To Find : Which of the box needs less material
Solution:
To Find the material required to make box
need to find total surface area
Total surface area of cube = 6 ( side)²
= 6(60)²
= 2160 cm²
Total surface area of cuboid = 2(lb + bh + lh)
l = 70 cm , b = 60 cm , h = 50 cm
= 2( 70 * 60 + 60 * 50 + 70 * 50)
= 200 ( 42 + 30 + 35)
= 200( 107)
= 2140 cm²
Hence cuboidal box need less material
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