Question

Need help FAST!! If I don't answer this before 15 minutes have passed I will fail!!

Answer 1

Answer: 1588 in^2
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Part 1:
Shape: Rectangular Prism
Formula: SA = 2(wl+hl+hw)
SA = 2(wl+hl+hw)
SA = 2(12(20)+5(20)+5(12))
SA = 800 in^2
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Part 2:
Shape: Triangular Prism
Formula: SA = bh + (s1+s2+s3)H
SA = bh + (s1+s2+s3)H
SA = (12)9 + (12+11+11)20
SA = 108 + 34(20)
SA = 788 in^2
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Part 3:
*Add surface areas together*
800 + 788 = 1588 in^2

Answer 2

Answer:

1588 in^2

Step-by-step explanation: