HELP PLS I NEED THE ANSWER RIGHT NOW 50 POINTS!!!
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Answer:
Below in bold.
Step-by-step explanation:
The solid consists of 2 trapezia. and 4 rectangles.
Total surface area = 2 * 1/2 * 4(6 + 12) + 2 * 3*5 + 3*6 + 3*12
= 72 + 30 + 18 + 36
= 156 in^2.
Volume = area of trapezium * height
= 1/2*4(6 + 12) * 3
= 36 * 3
= 108 in^3.
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