Question

Diameter of a coin is
2cm find the circumference ​

Answer 1

Answer:

Circumference of coin is 6.28 cm

Step-by-step explanation:

Shape of coin is a shape of a circle.

Thus, circumference of coin = Circumference of circle.

Now, Circumference of circle $=2R \times \pi$

Here R = radius

Now, Diameter of coin = 2 cm

Thus, radius of coin = $\frac{2}{2} = 1\hspace{0.1c}cm$

Now, circumference of coin is calculated as

$C = 2 \times \frac{22}{7} \times 1\\\\ C = 2 \times 3.14\\\\ C = 6.28cm$

Answer 2

Answer:

Step-by-step explanation:

circumference = 2π^r

radius = half of diameter

=1cm

circumference = 2π^1

=6.28318530718