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momforgetful
momforgetful asks:
Q:

What is the length of the diameter when the radius is 2.5m? I am having trouble understanding circumference.

In Topics: Helping my child with math
> 60 days ago

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Answers (1)

dgraab
dgraab , Parent writes:
Hi, The radius of a circle is half its diameter. If the radius is 2.5 meters, the diameter is 5 meters.

Here are some additional resources to brush up on radius, diameter and circumference:

http://www.mathgoodies.com/lessons/vol2/circumference.html

http://en.wikipedia.org/wiki/Radius

http://www.education.com/activity/article/Circumference_Radius_middle/

http://www.education.com/activity/article/Bicycle_Wheel_fifth/

Thanks for asking!

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