Convert to cylindrical coordinates:



Then
is the set of points
such that
,
, and
or
.
Now

Answer:
A
Step-by-step explanation:
Answer:
7.7ft
Step-by-step explanation:
Answer:
86.9 cm squared
Step-by-step explanation:
The surface area of a rectangular prism is denoted by:
, where l is the length, w is the width, and h is the height.
Here, the length is l = 5.3, the width is w = 2, and the height is h = 4.5. So, plug in these values:

Thus, the surface area is 86.9 cm squared.
Hope this helps!