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What is the diameter of a circle whose circumference is 5?

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Jim G. Share
Mar 23, 2018

Answer:

#"diameter "=5/pi~~1.59" to 2 dec. places"#

Explanation:

#"the circumference (C) of a circle is"#

#•color(white)(x)C=pidlarrcolor(blue)"d is the diameter"#

#"here "C=5#

#rArrpid=5#

#"divide both sides by "pi#

#(cancel(pi) d)/cancel(pi)=5/pi#

#rArrd=5/pi~~1.59" to 2 dec. places"#

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Write your answer here...
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Then teach the underlying concepts
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Answer

Write a one sentence answer...

Answer:

Explanation

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Explanation:

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Describe your changes (optional) 200

2
Nammi Share
Mar 23, 2018

Answer:

The diameter is #35/22#.

Explanation:

The diameter of a circle is twice its radius.

We can find the radius of the circle by the equation

#"circumference" =2pir #

Now, just plug it in as #5 = 2pir#

#5=2*(22/7)r#

#r = 5*(1/2)*(7/22)#

#r = 35/44#

Since the diameter is twice the radius, #d = 35/44 * 2#

#d=35/22#

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