A rectangle is bounded by the function
If the base of the rectangle is
, what is the height?
Notice that the rectangle is symmetric across the
Because of the symmetry, the endpoints of the rectangle can be found at
and ... after all, the distance between and is , the length of the base.
Consequently, the height of the rectangle can be evaluated at
What is the maximum area that the rectangle can obtain?
Area = (base)(height)
Use the base and height you found in part (a).Then optimize the Area function.
To find the maximum Area:
2. Solve for
3. Use the
and your expressions for base & height to calculate the maximum area.
If you made the rectangle from part (b) into a flag and spun it around the
-axis, what would be the resulting volume?
A cylinder with height __________ and radius __________.
so that the volume of the rotated rectangle is a maximum.
Volume of a cylinder:
If you need guidance optimizing the volume, refer to steps in part (b).