What are triangular numbers?(a) The numbers whose dot pattern can be arranged in triangles(b) The numbers which form a triangle on adding(c) The numbers which have three digits(d) The numbers which do not give perfect squares on addingThe question was posed to me during an internship interview.This intriguing question comes from Patterns in Squares in chapter Squares and Square Roots of Mathematics – Class 8

What are triangular numbers?(a) The numbers whose dot pattern can be a

1.	What are triangular numbers?(a) The numbers whose dot pattern can be arranged in triangles(b) The numbers which form a triangle on adding(c) The numbers which have three digits(d) The numbers which do not give perfect squares on addingThe question was posed to me during an internship interview.This intriguing question comes from Patterns in Squares in chapter Squares and Square Roots of Mathematics – Class 8
Answer» The correct ANSWER is (a) The NUMBERS whose dot pattern can be arranged in triangles Explanation: Triangular numbers are the numbers which when arranged in increasing order forms a shape of TRIANGLE, the triangle SHOWN below represents the number 6.

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