Advertisements
Advertisements
प्रश्न
Identical cubes are stacked in the corner of a room as shown below. The number of cubes that are not visible are ______.
Advertisements
उत्तर
Identical cubes are stacked in the corner of a room as shown below. The number of cubes that are not visible are 20.
Explanation:
Number of invisible cubes in layer 1 = 0
Number of invisible cubes in layer 2 = 1
Number of invisible cubes in layer 3 = 3
Number of invisible cubes in layer 4 = 6
Number of invisible cubes in layer 5 = 10
∴ Total number of invisible cubes = 1 + 3 + 6 + 10 = 20
APPEARS IN
संबंधित प्रश्न
What cross-sections do you get when you give a vertical cut and horizontal cut to the given solids a brick.
What cross-sections do you get when you give a vertical cut and horizontal cut to the given solid a round apple.
What cross-sections do you get when you give a vertical cut and horizontal cut to the given solid a die.
What cross-sections do you get when you give a vertical cut and horizontal cut to the given solid a circular pipe.
What cross-sections do you get when you give a vertical cut and horizontal cut to the given solid a ice cream cone.
Make a matchbox model which looks like this.
Also, make a deep drawing of the model in your notebook.
If three cubes each of edge 4 cm are placed end to end, then the dimensions of resulting solid are ______.
