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How To Find The Area Of An Annulus Or Ring Shape (Area between two circles).

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How To Find The Area Of An Annulus Or Ring Shape (Area between two circles).

1,151 views February 29, 2020 2:23

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Channelmaths3000

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This video will show you how to work out the area of an annulus. An annulus is a ring shape, and you need to find the area between the larger and smaller circle which make the annulus.
So in the example shown, the annulus is made of a small circle of radius 5cm and a larger circle of radius 9cm. Use the formula Pi multiplied by radius squared to find the area of both circles, and then find the difference between them. The answer will be 56Pi or 175.9 cm^2 to 1 decimal place.

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maths3000 published this 2:23 video tutorial on February 29, 2020. It has been watched 1,151 times on YouTube.

Channel
maths3000
Category
Education
Duration
2:23
Published
February 29, 2020
Views
1,151
Likes
9

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