Multiple choice

Two cubes of edge 8 cm each are joined. What is the volume of the resultant solid?

  1. 256 cm3

  2. 512 cm3

  3. 1014 cm3

  4. 1024 cm3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Joining two 8cm cubes creates a rectangular prism of 16cm x 8cm x 8cm. Volume = 16 * 8 * 8 = 1024 cm^3.

AI explanation

The volume of a single cube is calculated by the formula edge length cubed, so each 8 cm edge cube has a volume of 8 times 8 times 8, which is 512 cubic cm. Because two identical cubes are joined, the total volume of the resultant solid is simply the sum of their individual volumes. Adding the two volumes together, 512 cubic cm plus 512 cubic cm, gives a total volume of 1024 cubic cm.

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