Question

the diameter of a coin is 2 cm. what is the circumference of the coin​

Answer 1

The circumference of the coin​ is "6.28 cm".

Step-by-step explanation:

Given,

The diameter of a coin = 2 cm

∴ The radius of a coin(r) = $\dfrac{2}{2}$ cm

To find, the circumference of the coin​ = ?

we know that,

The circumference of the coin​ = 2πr

= 2 × 3.14 × 1

= 6.28 cm

Hence, the circumference of the coin​ is "6.28 cm".

Answer 2

Answer:

how 3.14 comes in the answer