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the Diameter of the Circle measure: 28 ftwhat is the Circumference of the Circle?use 3.14 for pie do Not round

the Diameter of the Circle measure: 28 ftwhat is the Circumference of the Circle?use-example-1
User Enriquetaso
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1 Answer

8 votes
8 votes

Solution:

Given the circle with diameter AB as shown below

The circumference of the circle is expressed as


\begin{gathered} \text{Circumference = 2}*\pi* r\text{ ----- equation 1} \\ \text{where} \\ r\text{ is the radius of the circle.} \\ \text{The radius of the circle is } \\ r=\frac{\text{diameter of the circle}}{2} \\ \Rightarrow diameter\text{ =2r} \end{gathered}

Thus, equation 1 becomes


\begin{gathered} \text{Circumference = }\pi*\text{ diameter of the circle ---- equation 2} \\ (\sin ce\text{ diameter = 2}* r) \end{gathered}

Given that the diameter AB of the circle is 28 ft, the circumference of the circle will be evaluated as


\begin{gathered} \text{Circumference = }\pi*\text{ diameter of the circle} \\ =3.14*28 \\ \text{Circumference =}87.92\text{ ft} \end{gathered}

Hence, the circumference of the circle is 87.92 ft.

the Diameter of the Circle measure: 28 ftwhat is the Circumference of the Circle?use-example-1
User Foxiris
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