Question

what is circumference of circle whose diameter is 3.5cm​

Answer 1

Step-by-step explanation:

Radius of the circle=

$\frac{3.5}{2} = 1.75cm$

Area of the circle=

$\pi \: {r}^{2}$

$\frac{22}{7} ( {1.75)}^{2}$

$\frac{22}{7} (3.06) \\ \\ 9.61cm {}^{2} \: approx$

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Answer 2

Ans: The circumference will be 11 cm.