Lake Tahoe is about 1.4 times bigger than Gaza Strip.

Gaza Strip is approximately 365 km² (141 sq mi), while Lake Tahoe is approximately 502 km² (194 sq mi), making Lake Tahoe 38% larger than Gaza Strip.
Tip: This to-scale comparison of Gaza Strip vs. Lake Tahoe uses the Mercator projection, which distorts the size of regions near the poles.
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