SOLUTION: Find the difference in the area of a straw with a diameter of 5mm and a straw with a diameter of 7mm.

Algebra ->  Surface-area -> SOLUTION: Find the difference in the area of a straw with a diameter of 5mm and a straw with a diameter of 7mm.       Log On


   

Question 333118: Find the difference in the area of a straw with a diameter of 5mm and a straw with a diameter of 7mm.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
For d = 5 mm:
Area+=+pi%2Ar%5E2+=+pi%2A6.25
For 7 mm:
Area+=+pi%2Ar%5E2+=+pi%2A12.25
Difference = 6 pi sq mms