Question

What is the diameter of a stepping stone that has a circumference of 25 inches?

Round to the nearest tenth.

Answer 1

`Diameter= 7.96 inch`

Explanation:

Circumference= 25 inches

Circumference of the circular stone=
`2\pi r`

As,
`\pi =(22)/(7) =3.14`

Putting the values in the formula:

`25=2*3.14*r\\\\25=6.28*r\\\\r=25/6.28\\\\r=3.98inch`

As,
`Diameter= 2*r= 2*3.98=7.96 inch`

`Diameter= 7.96 inch`

Answer 2

Explanation:

πd = 25 inches

`3.14*d=25\\\\d=(25)/(3.14)=(25*100)/(3.14*100)\\\\=(2500)/(314)=7.9617`

= 8.0 inches