Surface Area

• Review area of planar region in space
• Small parallelogram tangent to the surface
• Illustration to help calculate area of small parallelogram
• Surface z=4-x²-y²

A z-Simple Solid

• A z-simple solid
• The same solid as above with the back half removed for easy viewing

Solid for the Problem of the Day

• Solid involved in the Problem of the Day
• Same solid as above
  Note that the length of the y-lines depends on x and z