Hexagonal Numbers - Question 4 - Patterns in Mathematics (Ganita Prakash)

Transcript

Question 4 What would you call the following sequence of numbers? That’s right, they are called hexagonal numbers! Draw these in your notebook. What is the next number in the sequence? The sequence: 1, 7, 19, 37, … They are called hexagonal numbers because you can arrange dots in a hexagon shape Hexagon shape is Let’s find next number Understanding pattern 1, 3, 5, 7 dots in middle row. So, next number will have 9 dots in middle row For 7: 1 row above & below middle row, For 19: 2 rows above & below middle row, For 37: 3 rows above & below middle row, So, next number will have 4 rows above & below middle row, Drawing find next number