Chapter 11.7, Problem 21PPS

To determine

To calculate the circumference of the new fountain, rounded to the nearest tenth.

Answer to Problem 21PPS

  $100.6$ feet

Explanation of Solution

Given information:

Radius(r)for the new fountain would quadruple of the existing circular park

  $=4\times 4$

Multiplying the same.

  $=16$ feetis the radius.

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.

  $=2\times \frac{22}{7}\times 16$

Putting values and simplifying.

  $=100.57$

Rounding to the nearest tenth.

  $=100.6$ feet.