Which projection is neither conformal nor equal-area and described as modified equal-area?

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Multiple Choice

Which projection is neither conformal nor equal-area and described as modified equal-area?

Explanation:
Distortion properties define how a projection handles shape (conformality) and area (equal-area). The polyconic projection does not preserve angles, so it isn’t conformal, and it doesn’t preserve areas either, so it isn’t equal-area. Its construction uses a separate cone for each parallel, which leads to scale variations that break both conformality and equal-area. Because of this design, it’s often described as a modified equal-area approach—meaning it aims for a reasonable balance of distortions across latitudes without achieving true conformality or true equal-area.

Distortion properties define how a projection handles shape (conformality) and area (equal-area). The polyconic projection does not preserve angles, so it isn’t conformal, and it doesn’t preserve areas either, so it isn’t equal-area. Its construction uses a separate cone for each parallel, which leads to scale variations that break both conformality and equal-area. Because of this design, it’s often described as a modified equal-area approach—meaning it aims for a reasonable balance of distortions across latitudes without achieving true conformality or true equal-area.

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