Which projection does not produce a conformal map?

• A. Winkel Tripel
• B. Mercator Projection
• C. Stereographic Projection
• D. Lambert Conformal Conic

Answer: (D)

Preserving local angles is what conformality means in map projections—the small shapes on the map match the shapes on the globe as you look at them locally, even if the sizes are stretched or compressed.

Mercator is conformal, so small shapes are preserved in angle, which is why rhumb lines are straight on it and compass directions stay consistent, though areas get badly distorted toward the poles. Stereographic projection is also conformal because it preserves angles, making it useful for things like celestial and complex-analysis illustrations. Lambert Conformal Conic is designed to be conformal along its standard parallels, preserving shapes there while distorting them away from those parallels.

Winkel Tripel, however, is a compromise projection chosen to minimize overall distortion of area, distance, and direction. It does not preserve angles, so local shapes are not kept true. That’s why it does not produce a conformal map.

So the projection that does not produce a conformal map is Winkel Tripel.