Pure gold is formed into bricks that are right trapezoidal prisms. The dimensions of a gold brick are shown. What is the volume of the gold brick? Show your work.
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Answer:
volume of gold: 40.5 in³
Explanation:
[tex]\sf Volume \ of \ trapezoid: area \ of \ base \ * \ length[/tex]
Here the area of base:
[tex]\sf \frac{1}{2} *(base \ 1 + base \ 2 ) * height[/tex]
[tex]\sf \frac{1}{2} *(3.2 + 2.2) * 1.5[/tex]
[tex]\sf \frac{1}{2} *(5.4) * 1.5[/tex]
[tex]\sf 4.05[/tex]
Volume:
area of base * length
4.05 * 10
40.5 in³