Two annuluses

The area of the annular circle formed by two circles with a common center is 100 cm2. The radius of the outer circle is equal to twice the radius of the inner circle. Determine the outside circle radius in centimeters.

Correct answer:

r2 =  6.5147 cm

Step-by-step explanation:




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



avatar








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

Related math problems and questions: