Question

b) a cuboid with
Count the number of cubes in the following arrangements.
(b)​

Answer 1

Answer:

Clearly there are 13 columns containing 1 cube; 7 columns containing 2 cubes and one column containing 3 cubes

∴Total number of cubes are

1 X 13+2 X 7+3 X 1 = 13+14+3=30

Explanation:

Answer 2

Answer:

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