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In a Venn diagram the universal set is usually drawn as a:

ASingle dot
BRectangle
CSmall circle
DTriangle
Answer & Solution
Correct answer: B. Rectangle
1. Venn diagrams use rectangles and closed curves. 2. The subsets are drawn as circles inside. 3. The universal set is the rectangle. _Source: syllabus Mathematics, Chapter 1, Sets._
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