Question

A circle has a circumference that is greater than 8 meters. The inequality 3.14d> 8 can be used to determine the possible lengths

of the diameter of the circle. What are the possible values of d, the length of the diameter in meters?

d<25.1

d>25.1

d<25

d>2.5

Answer 1

To simplify the answer above, D

Explanation:

Answer 2

(D)d>2.5

Explanation:

Given that the circumference of a circle is greater than 8 meters.

For a circle of diameter d:

Circumference
`=\pi d`

Since
`\pi =3.14`

`3.14d>8`

To obtain possible values of the diameter d, we divide both sides of the equation by 3.14.

`(3/14d)/(3.14)>(8)/(3.14)\\\\ d>2.5$ (correct to 1 decimal places)`

The correct option is D.