why does the trapizoid have two height between bases

[frail sphinx]

is the first part of the problem the bit that is cut off?

i dont even understand how there's a perimeter that's 73

yeah then i have no idea what method is being used, personally

seems like it would be way easier to get the areas of the rectangles, and then the rate as it slopes down

oh its for surface area

even then you could just do the whole rectangular prism, then the triangular piece

[patent wraith]

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