Question

The radius of a circle is 6. Using π, which equation expresses the ratio of the circumference of the circle to the circle's diameter?

Answer 1

Answer:

Ratio of circumference of the circle to the circle's diameter = π : 1

Step-by-step explanation:

Radius of the circle is given to be 6 units

So, Diameter of the circle will be 2 × radius

So, Diameter of the circle will be 2 × 6

⇒ Diameter of the circle = 12 units

Circumference of the circle = 2π × radius

⇒ Circumference of the circle = 2π × 6

⇒ Circumference of the circle = 12π units.

Now, ratio of circumference of the circle to the circle's diameter = 12π : 12

⇒ Ratio in the simplest form = π : 1

Answer 2

The formula of the circumpherence is pie r squared