Long description: fig7

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• The image displays a diagram in a three-dimensional Cartesian coordinate system, featuring axes labeled as \(x\), \(y\), and \(z\).
• There is a shaded, planar surface that is tilted relative to the \(x\)-\(y\) plane.
• Several dashed lines and labels indicate dimensions across this plane:
• The horizontal axis represents the \(x\)-direction.
• The axis extending into the page represents the \(y\)-direction.
• The vertical axis represents the \(z\)-direction.
• Dimensions are labeled for the projections or spans of the surface in each direction:
• A distance labeled \(\frac{D}{A}\) is shown along the \(x\)-axis direction, indicating a dimension on the lower-left portion of the plane.
• A distance labeled \(\frac{D}{B}\) is shown along the \(y\)-axis direction, indicating a dimension on the upper-right portion of the plane.
• A distance labeled \(\frac{D}{C}\) is shown along the \(z\)-axis direction, indicating a dimension on the upper portion of the plane.