_____ is a triangular number.(a) 3(b) 2(c) 5(d) 7The question was posed to me by my school teacher while I was bunking the class.My doubt stems from Patterns in Squares topic in section Squares and Square Roots of Mathematics – Class 8

_____ is a triangular number.(a) 3(b) 2(c) 5(d) 7The question was pose

1.	_____ is a triangular number.(a) 3(b) 2(c) 5(d) 7The question was posed to me by my school teacher while I was bunking the class.My doubt stems from Patterns in Squares topic in section Squares and Square Roots of Mathematics – Class 8
Answer» Right option is (a) 3 The EXPLANATION: Triangular numbers are the numbers which when ARRANGED in increasing order forms shape of triangle. Here, 3 is the only triangular number. Hence, 3 is the correct answer and OTHERS are incorrect.

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