CTET 2 Math and Science Feb 2014 Paper

Question : 45 of 120

Marks: +1, -0

Forty-two cubes each of side 1 cm are glued together to form a solid cuboid. If the perimeter of the base of the cuboid is 18 cm, then its height, in cm, is

Validate

Solution:

Perimeter = 18
Area of base

=\;\;{1}/{2}×42

∴ Height

=21–18=3cm

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