Maharashtra State BoardSSC (English Medium) 5th Standard
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Which are the triangular numbers in the given list? 3, 6, 8, 9, 12, 15, 16, 20, 21, 42 - Mathematics

One Line Answer

Which are the triangular numbers in the given list?

3, 6, 8, 9, 12, 15, 16, 20, 21, 42

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Solution

3, 6, 15, 21 are triangular numbers.

Concept: Introduction of Patterns
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Balbharati Mathematics 5th Standard Maharashtra State Board
Chapter 15 Patterns
Problem Set 53 | Q 2 | Page 84
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