Question

The diameter of a circle is 35.7 yards. The circle's circumference is about ___ yards.Use 3.14 for π.

Answer 1

The diameter of a circle is 35.7 yards.

The circumference of circle is determined as,

`C=2\Pi r`

Here r is the radius of circle.

Determining the radius of circle.

`d=2r`
`35.7=2* r`
`r=(35.7)/(2)`

Substitute the radius in the circumference formula

`C=2*3.14*(35.7)/(2)`
`C=3.14*35.7`
`C=112.098\text{ yards.}`

Hence the circumference of circle is 112.098 yards.