Volume of an object is the measure of the space that object occupies. The correct comparison of volume of considered objects is: Volume of A = Volume of B
Suppose that the right rectangular prism in consideration be having its dimensions as 'a' units, 'b' units, and 'c' units, then its volume is given as:
[tex]V = a\times b \times c \: \rm unit^3[/tex]
It can be obtained by multiplying the cross sectional triangle's area to the height of the considered triangular prism.
Thus, for the given case, we get:
Its dimensions are 1.5 units by 1 units by 1.81 units
Thus, [tex]V_A = 1.5 \times 1 \times 1.81 = 1.5 \times 1.81 = 2.715 \: \rm unit^3[/tex]
Its cross section triangle has base of 2 units and height of 1.5 unit. The height of the prism is equal to the height of the considered rectangular prism = 1.81 units,
Thus,
[tex]V_B = \text{Area of triangular cross-section} \times 1.81 = \dfrac{1}{2} \times 2\times 1.5 \times 1.81 \: \rm unit^3\\V_B = 2.715\: \rm unit^3\\\\[/tex]
Thus, we get [tex]V_A = V_B[/tex]((Volume of A = Volume of B)
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