Question

The diameter of a circle is 28cm.Find its circumference​

Answer 1

Answer:

Diameter of circle = 28

Then radius = 1/2 × 28 ( Remember radius is always half od diameter)

Radius = 14 cm

Circumference of circle = 2πr

Circumference = 2 × 22/7 × 14

Circumference = 88 cm

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Answer 2

Answer:

$88 {cm}^{2}$

Step-by-step explanation:

We are given :-

diameter of circle = 28cm

To find circumference:-

radius of circle =

$\frac{d}{2} = 14$

volume of circle =

$2\pi \: r$

$2 \times \frac{22}{7} \times 14 \\ \\ 88 {cm}^{2}$

Hence circumference of circle is 88cm^2