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Mathematics 21 Online
SkinnyMinnie20:

Use the net to find the surface area of the prism. 660 ft2 594 ft2 272 ft2 404 ft2

SkinnyMinnie20:

1 attachment
Vocaloid:

shortcut method: if we treat the middle part as one giant rectangle we can find the area by multiplying length * width = (6+11+6+11)*8

Vocaloid:

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Vocaloid:

if we consider that the rectangle has to fold up into a prism, we can see that the height 6 must also be the height of the uppermost rectangle

SkinnyMinnie20:

okay

Vocaloid:

so the area of the bottom and top rectangles are each 11*6 so your final answer is 2(11*6) + (6+11+6+11)*8 = 404 ft^2 = your answer

Vocaloid:

also you can use @vocaloid to ping me, I'm kind of multi tasking

SkinnyMinnie20:

okay will do, seems like you are the only one helping me

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