Sketch the Region Bounded by the Surfaces with Equations $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 4 z = 0$

question 56

Essay

Sketch the region bounded by the surfaces with equations $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 4 z = 0$ and $z = \sqrt { x ^ { 2 } + y ^ { 2 } }$ .

---

Definitions:

Cornea

The transparent front part of the eye that covers the iris, pupil, and anterior chamber, providing most of the eye's optical power.

Pupil

The adjustable opening in the center of the iris of the eye, through which light enters and is focused on the retina.

Retina

The layer of tissue that is located on the inner surface of the eyeball and contains the sensory receptors for vision.

Sclera

The white, outer layer of the eyeball that provides structure and protection.