NCERT | Patterns | Intext | Pg.152 | Q1 — task. Mathematics CBSE, Class 8 New.

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Observe the pattern in the figure below.

The expression

{(k + 1)}^{2} - 1

gives the number of circles at Step \(k\) of this pattern.

Use this formula to find the number of circles in Step \(5\).

Answer:

The number of circles in Step \(5\) is .

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7. NCERT | Patterns | Intext | Pg.152 | Q1