Question

If the circumference of a circular roller skating rink is 36 yards, what is the diameter of the rink (to the nearest whole yard) ? Use 3.14 for pi

Answer 1

To work out circumference you use:

`2 \pi r`

Do get diameter from the circumference, you divide the circumference by pi:

36 / 3.14 = 11.5, or rounded to 12.

So the answer is 12 yards.

Hope this helps!

Answer 2

11 yards

Option 3 is correct.

Explanation:

The circumference of a circular roller skating rink is 36 yards.

Formula:

`C=\pi d`

where, C is circumference and d is diameter.

`\pi=3.14`

C=36

d=?

`36=3.14* d`

`d=(36)/(3.14)\approx 11.46`

`d=11\text{ yards}`

Hence, The diameter of circular track is 11 yards