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den301095 [7]
3 years ago
10

Question is attached below, Good Luck! I will Mark Brainliest for best answer!

Mathematics
1 answer:
DerKrebs [107]3 years ago
6 0

Answer:

1960 cm^2

Step-by-step explanation:

Surface area:

Area of cross section x 2 = 1/2 x 20 x 21 x 2 = 420 cm^2

Area of slope = 29 x 22 = 638cm^2

Area of base = 22 x 20 = 440cm^2

Area of back = 21 x 22 = 462cm^2

Total Surface area = 462+440+638+420 = 1960cm^2

Hope this helps

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