Q.11 the marked one.
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The number of sides (n) = 50
Step-by-step explanation:
convert the side from mm to cm i.e 25mm to 0.25cm (∵ 1cm = 10mm)
we know that, perimeter is sum of length of all the sides "l" (l+l+l+l+....)
⇒ ntimes l (nl) = 12.5cm
but, l= 0.25cm
∴ n(0.25) = 12.5
⇒ n= 50
tharunprathapan22:
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