SOLUTION: A teacher is making a game of ring toss for her class. She starts by using a circle with a diameter of 10 in. and then cuts out a smaller circle with a diameter of 6 in., leaving a

Algebra ->  Surface-area -> SOLUTION: A teacher is making a game of ring toss for her class. She starts by using a circle with a diameter of 10 in. and then cuts out a smaller circle with a diameter of 6 in., leaving a      Log On


   

Question 1199353: A teacher is making a game of ring toss for her class. She starts by using a circle with a diameter of 10 in. and then cuts out a smaller circle with a diameter of 6 in., leaving a ring.
What is the approximate area of the remaining ring?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

From the area of the bigger circle subtract the area of the smaller circle.

Be very attentive and do not mix up the diameters with the radii.


Happy calculation  ( ! )

Have fun  ( ! )