Out of 6 faces of 5 faces are exposed and those were painted.
Number of vertices with three faces exposed (Painted) is 4
Number of vertices with 2 faces exposed (Painted) is 4
Number of vertices with 1 faces exposed (Painted) is 0
Number of vertices with 0 faces exposed (Painted) is 0
Number of sides with 2 sides exposed (Painted) is 8
Number of sides with 1 sides exposed (Painted) is 4
Number of sides with no sides exposed (Painted) is 0
From the above observation:
Number of cubes with 3 faces Painted is 4
Number of cubes with 2 faces Painted is given by sides which is exposed from two sides, out of 8 such edges 4 vertical edges will give us 6 cubes per edge and 4 edges from top surface will give us 5 such cubes from each edge and required number of cubes is 6 x 4 + 4 x 5 = 44.
Number of cubes with 1 face Painted is given by faces which is exposed from one sides four vertical faces will give us 6 x 5 = 30 cubes per face and top face will give us 5 x 5 = 25 and required number of cubes is 30 x 4 + 25 x 1 = 145
Number of cubes with 0 face Painted is given by difference between total number of cubes - number of cubes with at least 1 face painted = 343 - 4 - 44 - 145 = 150
In other words number of cubes with 0 painted is 6 x 5 x 5 = 150
From the above explanation number of the cubes with 0 faces painted is 150.
From the above explanation number of the cubes with at least 2 faces painted is 44 + 4 = 48.
Total cubes = 9
In all other figures all the three designs face different directions but in figure (4) two of the three designs face the same direction.
If a mirror is placed on the line MN, then which is the right image of the given figure?
Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square.
Except in figure (2), in all other figures one line segment intersects one arrow at right angle.
Except in figure (1), in all other figures the arrow is pointing clockwise. So , figure ( 1 ) is correct .
In figure (3) all circles are concentric. But all other figure are in same .
Answer A
A regular Pentagon have 5 sides and 5 lines of symmetry.
Comments
There are no comments.Copyright ©CuriousTab. All rights reserved.