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work out the perimeter of a semicircle with radius 3cm.give your answer in π form

 Apr 9, 2021
edited by Guest  Apr 9, 2021
 #1
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Hey there, Guest!

 

So the perimeter of a circle is also called the circumference.

 

\(C=2\pi r\)

 

\(2\pi 3\)

 

\(6\pi \)

 

\(6\pi/2\)\(=\) 3pi cm

 

And there's your answer.

 

Hope this helped! :)

( ゚д゚)つ Bye

 Apr 9, 2021
 #2
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Hello, Guest! The diameter of a semicircle is included in the perimeter too. laugh

 

Perimeter = 3pi + 6 cm

Guest Apr 9, 2021

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