Question

URGENT! 50 POINTS

Visualization:
Suppose you revolve the plane region completely
about the given line to sweep out a solid of revolution. Describe
the solid and find its surface area in terms of π.


Question: the line x = 4

Answer 1

• Cylinder
• 56π

Explanation:

This will result in cylinder with radius of 4 and height of 3.

Total surface area:

• S = 2πr² + 2πrh = 2π(4² + 4*3) = 2π*28 = 56π