You have a piece of 8-inch-wide metal which you are going to make into a gutter by bending up 3 inches on each side
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The point (x,y) is the endpoint of the angled 3-unit line segment (on the right). Imagine if the figure were plotted on a coordinate plane, the origin would be where the 2-unit and the 3-unit line segment intersect. Theta is the angle made between the angled segment and the y-axis. I tried to upload a photo but I'm not able to. I hope this helps. Thanks for the comment!
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It's not clear what it is referred to as x and y.
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Thanks, Rage. I edited the question with a description. I hope it's helpful.
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I think I can answer this, but I'm gonna need more time!
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