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3 years ago

5

HELP ASAP!! WILL MARK BRAINLIST!! A LOT OF POINTSS

1 answer:

Lostsunrise [7]3 years ago

3 0

Answer:

Total surface area = 580.96 yd^2

Step-by-step explanation:

Total surface area

From left to right

Rectangle 1

A = lw = 9.9 *20 =198

Rectangle 2

A = lw = 6.8 *20 =136

Rectangle 3

A = lw = 9.9 *20 =198

Triangle top

A = 1/2 bh = 1/2 (6.8)(7.2) =24.48

Triangle bottom

A = 1/2 bh = 1/2 (6.8)(7.2) =24.48

Add them together

198+136+198+24.48+24.48

580.96

Total surface area = 580.96 yd^2

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