1 Answer

MicNeo · Answer 1 · 2023-01-09T17:35:56+0000

(a)Recall that the circumference of a circle is given by the following formula:

$C=\pi d.$

Where d is the diameter of the circle.

Substituting d=14 ft in the above formula, we get:

$C=\pi(14ft)\approx43.98ft\text{.}$

(b) Recall that the area of a circle is given by the following formula:

$A=(\pi d^2)/(4).$

Substituting d=14 ft in the above formula, we get:

$A=(\pi(14ft)^2)/(4)=49\pi ft^2\approx153.94ft^2.$

Answer:

(a)

Exact solution:

$14\pi ft.^{}$

Approximation:

$43.98\text{ ft.}$

(b) Exact solution:

$49\pi ft^2\text{.}$

Approximation:

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