Question

A soda can has a diameter of 6 cm. What is the circumference of the can? (C = πD) A) 1.19 cm B) 9.14 cm C) 18.84 cm D) 28.26 cm

Answer 1

The cicumference is 18.84 because
3.14×6
=18.84

Answer 2

Solution :

Given a soda can has a diameter of 6 cm.

As we know,  the circumference of circle with radius r is , $C=2\pi r$.

And diameter of  the circle $D = 2r$

So, the circumference of the circle with diameter D is ,  $C=\pi D$

Put D= 6

$\Rightarrow C=6 \pi\\\\Using\: \pi=3.14\\\Rightarrow C=6\times3.14\\\\\Rightarrow C=18.84$

Hence, the circumference of the can is 18.84 cm. (option C)