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Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/geometry-tx/x790e3ac3e338c450:measurement-of-3d-figures/x790e3ac3e338c450:surface-area/v/surface-area-of-a-rectangular-pyramid Given a right rectangular (non-square) pyramid with the dimensions of the base and the ...
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