Yulia observed a sound wave moving through a solid medium at four different temperatures, and she recorded observations about ea
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Answer:
I have made it in above picture
As a first step, convert to cylindrical coordinates. The equation 
is a clue to set
then have
and 
. Meanwhile, the plane equation tells you to use
So we parameterize the part of the plane within the cylinder with the vector-valued function
The surface integral giving the area of the surface is
where
denotes the surface in question, and the surface element 
is
We have
So the area is
then have
So we parameterize the part of the plane within the cylinder with the vector-valued function
The surface integral giving the area of the surface is
where
We have
So the area is