Question

julian has partially filled the prism below with 16 unit cubes. how many more unit cubes will he need to completely fill the prism? \bigcirc 11 \bigcirc 20 \bigcirc 25 \bigcirc 36

Explanation:

Step1: Find volume of prism

The prism is a rectangular prism with length \( l = 4 \), width \( w = 3 \), height \( h = 3 \). The volume formula for a rectangular prism is \( V=l\times w\times h \). So \( V = 4\times3\times3=36 \).

Step2: Calculate needed cubes

Subtract the number of already filled cubes (16) from the total volume (36). So \( 36 - 16 = 20 \).

Answer:

20