CTET (Central Teacher Eligibility Test) PaperII Mathematics: Questions 1 of 441
» Mathematical Content » Geometry
Appeared in Year: 2014
MCQ▾
Question
Fortytwo 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 (February)
Choices
Choice (4)  Response  

a.  2 

b.  3 

c.  1 

d.  4 

Answer
b.
Explanation

As given, there perimeter of base of cuboid = 18 means is we take length and width of base as a and b then perimeter

Now, there are total 42 cubes of 1 cm, so where so it can be length and width of cuboid, as where a and b are length and width.

So, in , 7 = length, 2 = width and 3 = height.