Question

The area of the curved surface
$S = \left\{ (x, y, z) ∈ \R^3 : z^2 = (x − 1)^2 + (y − 2)^2 \right\}$
lying between the planes z = 2 and z = 3 is

• A. $4\pi\sqrt2$
• B. $5\pi\sqrt2$
• C. $9\pi$
• D. $9\pi\sqrt2$

Answer 1

The Correct Option is B

The correct option is (B) : $5\pi\sqrt2$.