This math topic focuses on practicing the calculation of missing coordinates on a Cartesian grid for obtuse triangles, where only positive values are considered. It involves determining a specific missing value (x) that would result in a predefined area of the triangle, with multiple choice answers provided for each question. This set of problems is part of a broader unit on Cartesian Grid Geometry Logic and is designed to enhance spatial reasoning and application of area formulas in coordinate geometry.
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Find the missing value for x if the triangle has an area of 21
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