Volume by slicing: discs and washers
A solid is the sum of its plates, so $V = \int A(x)\,dx$; for a solid of revolution the face is a disc or a washer.
About 25 minutes7 activities Paper packet
A solid is the sum of its plates, so $V = \int A(x)\,dx$; for a solid of revolution the face is a disc or a washer.
About 25 minutes7 activities Paper packet