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Which are the triangular numbers in the given list? 3, 6, 8, 9, 12, 15, 16, 20, 21, 42 - Play, Do, Learn

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Question

Which are the triangular numbers in the given list?

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

One Line Answer

Solution

3, 6, 15, 21 are triangular numbers.

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Introduction to Patterns

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Chapter 15: Patterns - Problem Set 53 [Page 84]

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Balbharati Mathematics [English] 5 Standard Maharashtra State Board

Chapter 15 Patterns
Problem Set 53 | Q 2 | Page 84

Balbharati Integrated 5 Standard Part 4 [English Medium] Maharashtra State Board

Chapter 3.3 Patterns
Problem Set 53 | Q 2. | Page 48

RELATED QUESTIONS

Find the square numbers from the list given below.

5, 9, 12, 16, 50, 60, 64, 72, 80, 81

Name a number that is square as well as triangular.

If 4 is the first square number, which is the tenth one?

If 3 is the first triangular number, which is the tenth one?

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