Thea builds the first layer of a rectangular prism using 4 unit cubes raj adds 4 more layers how many unit cubes are used?

20 unit cubes were used.

Step-by-step explanation:

Thea builds the first layer of a rectangular prism with 4 unit cubes.

Raj added 4 more layers so total five layers were there to build a new prism. Now we have to calculate total number of cubes used.

By unitary method

∵ One layer of rectangular prism used number of cubes = 4

∴ 5 layers of prism will use cubes = 5×4 = 20 unit cubes

Total 20 unit cubes were used.

i think this could be a possible answer (1 / 84) -1

good luck! : d

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