# 7.7 Volume Washer Methodap Calculus

### 7.7 Volume Washer Methodap Calculus Solver

Problem with setting up Washer/Disk method for determining solid of revolution.
Need to find the volume of the solid of revolution:
Find the volume of the solid of revolution generated by revolving region about the line y=7
y=7sqrtx, y=7 and x=0
I set up the problem like this:
a=0 b=1 pi[7^2 - (7sqrtx)^2 dx] using the washer method
The answer to this problem is 49pi/6 in my book.
I got 49pi/2.
How am I setting up the problem wrong? These are difficult problems, and getting an answer does not help with the learning.

### 7.7 Volume Washer Method Ap Calculus Frq

5,023 3 3 gold badges 7 7 silver badges 23 23 bronze. Calculus volume problem. Use calculus to set up an integral for the volume of the bagel using washer. Calculus Name Date Period ©X Q2b0 51E32 JKSu hteaP uSpoLfmt3w Za crOeO cL eLZCh.E i rAalolG QrOizg thKt4s 4 Crpe Es 1e nr Xvhe qdk. 2 7.3: Disk and Washer Method for Volumes For each problem, find the volume of the solid that results when the region enclosed by the curves is.