8cm x 5cm x 6.4 cm x 10 cm x 12 cm

To find the volume of the given rectangular prism, you multiply its dimensions together:

Volume = Length x Width x Height

Volume = 8cm x 5cm x 6.4cm x 10cm x 12cm

Volume = 3072 cubic cm

To find the volume of a rectangular prism with dimensions 8cm, 5cm, 6.4cm, 10cm, and 12cm, you can use the formula:

Volume = length x width x height

Step 1: Multiply the first three dimensions:
8cm x 5cm x 6.4cm = 256cm³

Step 2: Multiply the result by the last two dimensions:
256cm³ x 10cm x 12cm = 30,720cm³

So, the volume of the rectangular prism is 30,720cm³.