Chapter 11.7, Problem 8PPS

To determine

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

Answer to Problem 8PPS

  $6.3$ centimeters

Explanation of Solution

Given information:

Diameter (d) $=2$ centimeters.

Formula used:

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

Where ‘r’ is the radius $=\frac{d}{2}$

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

Calculation:

  $c=2\times \pi \times r$

Formula of circumference of the circle.

  $=2\times \frac{22}{7}\times \frac{2}{2}$

Putting the value or ‘r’ and dividing the common numbers from the numerator and denominator.

  $=6.28$

Rounding off the figure to the nearest tenth.

  $=6.3$ centimeters.