To calculate the volume just multiply the lengths of the prism.
Volume = 3(1/3) x 10(1/5) x 4(1/4)
Simplification
Volume = 3 x 10 x 4 ( 1/3 x 1/5 x 1/4)
Volume = 120 (1/60)
Volume = 120/60
Volume = 2 in^3
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