Greenland vs Mexico: which is bigger?
Greenland is bigger: 2,166,086 km² against 1,964,375 km², about 1.1 times the size of Mexico.
Drop Greenland onto Mexico →Side by side at true size
Both drawn at the same scale on an equal-area projection.
And on the usual world map
On the usual world map Greenland looks 15 times bigger, not 1.1: the map inflates Greenland about 16 times and Mexico 1.21 times.
In numbers
Areas: official totals including inland water (UN Statistics Division via Wikidata). Outlines: Natural Earth. How Globegami works