Question

a side of a regular polygon is 8.25 and perimeter of the polygon is 69 cm find number of sides

Answer 1

Which chapter bud? Cause without knowing chap I can't answer

Answer 2

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Let 'n' be the number of sides

Perimeter of a regular polygon = n × length of one side

69 = n × 8.25

$n = \frac{69}{8.25} \\ \\ n = 8.36 \\ \\ no \: of \: sides \: = 8 \: (approx)$