Chapter 11.7, Problem 14PPS

To determine

To find the circumference of the circle, rounded to the nearest tenth.

Answer to Problem 14PPS

  $86.1$ millimeters

Explanation of Solution

Given information:

Radius(r) $=13.7$ millimeters.

Formula used:

Circumference (c) of a circle can be calculated using formula $2\times \pi \times r$

For calculations, value of $\pi =\frac{22}{7}$ .

Calculation:

  $c=2\times \pi \times r$

Formula for circumference of a circle.

  $=2\times \frac{22}{7}\times 13.7$

Putting the value of radius and simplifying the expression.

  $=86.11$

Rounding off to the nearest tenth.

  $=86.1$ millimeters.