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Question
Which of the following circles is a circle of triangular numbers?
Which of the following circles is a circle of triangular numbers?
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Solution
The correct option is C
Triangular numbers are derived from the addition of consecutive natural numbers.
Natural Numbers: 1 2 3 4 5 6 7
1 1+2=3 1+2+3=6 1+2+3+4=10
So the series of numbers (1, 3, 6, 10, 15, etc.) obtained by continued summation of the natural numbers 1, 2, 3, 4, 5, etc is termed as triangular numbers.
Triangular numbers are derived from the addition of consecutive natural numbers.
Natural Numbers: 1 2 3 4 5 6 7
1 1+2=3 1+2+3=6 1+2+3+4=10
So the series of numbers (1, 3, 6, 10, 15, etc.) obtained by continued summation of the natural numbers 1, 2, 3, 4, 5, etc is termed as triangular numbers.
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