To find how much space remains in the box, you will find the total space of the box by finding the volume of it. Then you will subtract the volumes of the 2 triangular prisms. The remaining would be the extra space.
Volume of Rectangular Prism - 2(Volume of the Triangular Prism)
Bh - Bh
(3 x 6 x 4) - 2 [(1/2 x 2 x 5) x 3]
72 cubic feet - 30 cubic feet
42 cubic feet
There are 42 cubic feet of space remaining.
The total volume is 12x
if the sand is 1.5 ft tall then use the equation 1.5 with the sand and see if you get the total volume
<u>Length of sides</u>:
<u></u>
<u>Surface Area</u>:
(perimeter of base)(length) + (base)(height)
(8+10+6)(4)+(8)(6)
(24)(4)+48
96+48
144 ft²
Answer= 94/4
I hope this helps you
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