Question

Find the approximate value of the circumference of a circle with the given radius. Use = 3.14. Round your results to one more decimal than in the given radius. 4 inches C = 12.5 inches 12.6 inches 25.1 inches 25.2 inches

Answer 1

C  = 2 * 3.14 * 4 =   25.1  to nearest tenth ( 1 decimal place)

Answer 2

`25.1\ inches`

Explanation:

we know that

The circumference of a circle is equal to

`C=2\pi r`

we have

`r=4\ in`

substitute

`C=2(3.14)(4)=25.1\ in` -----> one more decimal than the given radius (nearest tenth)