July 15th, 2005
Inch Drawing
What is the area of a trapezoid with the dimensions of (top) 4 inches, bottom right and left angles three inch
The top is 4 inches. if you draw two straight lines from the two top corners down, you get three inches to the left and to the right of the center section. so top is 4 inch, and bottom is 3, 4, 3.
i can't see any possible solution to that problem..
you see, you need the height..
i know some to get the height using the principles of the right triangle, may that be Pythagorean, 30-60-90m or 45-90-90 but something is missing..a given! one more given is what i need to solve that
sorry
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This kit features a warp-free Melamine laminate surface drawing board a parallel ruling device utilizing nylon pulleys built into the underside of the board and fold out legs to let the board sit at a more comfortable angle.
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A ruler that eliminates the need for a beam compass or expensive curve sets. It can be adjusted to any radius, from 6 3/8in to 200in (17cm to 500cm), to determine the radius of an existing curve for dimension drawings, to find center lines and center points, or determine what a curve must be to fair in existing points, or lines, on a drawing SuppliesNet item (A464)
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Tags: art, design, Drawing, illustration, paper
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US $119.99
