Annulus

The radius of the larger circle is 8cm, the radius of smaller is 5cm. Calculate the contents of the annulus.

Correct answer:

S =  122.5221 cm2

Step-by-step explanation:

r1=8 cm r2=5 cm  S1=π r12=3.1416 82201.0619 S2=π r22=3.1416 5278.5398 S=S1S2=201.061978.5398=122.5221 cm2



Did you find an error or inaccuracy? Feel free to write us. Thank you!



avatar







You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: