Are you supposed to rotate this region about an axis? As it is, you have described a 2 dimensional region, so there is no volume...
The solid lies between planes perpendicular to the x axis at and . The cross-sections perpendicular to the x axis between these planes are squares whose bases run from the semi-circle to the semi-circle
is the area of a square
On the right track here?
The book says the answer will come out to
Same idea as your other thread Volume by Slicing.
- Hollywood
The solid lies between planes perpendicular to the x axis at and . The cross-sections perpendicular to the x axis between these planes are squares whose bases run from the semi-circle to the semi-circle
is the area of a square