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Find the missing quantities for the following circle. Use the pi key for pi.

Find the missing quantities for the following circle. Use the pi key for pi.-example-1

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Answer:

• The radius of the circle is 54.6 cm.

,

• The circumference of the circle is about 171.53 cm.

Explanation:

Given the radius of a circle = 27.3 cm

Diameter

The diameter of a circle is twice the length of the radius.


\begin{gathered} Diameter=2* Radius \\ =2*27.3 \\ =54.6\;cm \end{gathered}

The radius of the circle is 54.6 cm.

Circumference

The circumference of a circle with radius, r is calculated using the formula:


C=2\pi r

Substitute r=27.3 cm:


\begin{gathered} C=2*\pi*27.3 \\ =171.53095889 \\ \approx171.53\;cm \end{gathered}

The circumference of the circle is about 171.53 cm.

User Vincenth
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