Which of the following is a triangular number?(a) 2(b) 4(c) 5(d) 6This question was addressed to me during an internship interview.This intriguing question comes from Properties of Squares in section Squares and Square Roots of Mathematics – Class 8

Which of the following is a triangular number?(a) 2(b) 4(c) 5(d) 6This

1.	Which of the following is a triangular number?(a) 2(b) 4(c) 5(d) 6This question was addressed to me during an internship interview.This intriguing question comes from Properties of Squares in section Squares and Square Roots of Mathematics – Class 8
Answer» CORRECT CHOICE is (d) 6 The BEST I can explain: Triangular numbers are the numbers which when arranged in increasing order forms a shape of triangle, the triangle shown represents the NUMBER 6. Hence the only number forming the triangular number is 6. Hence the OPTIONS other than 6 are incorrect.

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