Question

find the circumference of a circle whose diameter is 19.6 cm

Answer 1

diameter =19.6cm
radius=9.8cm

circumference of circle=
$2\pi \times r$
=2×22/7×9.8=61.6cm

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Answer 2

$\huge \mathfrak {Solution:-}$

Given,
Diameter, d = 19.6 cm

So, radius, r = 19.6/2 = 9.8 cm

Hence, the Circumference of the circle will be

=$2\pi \: r$

= 2 × 22 /7 × 9.8

= 2 × 22 × 1.4

= 61.6 cm

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