The area of a polygon equals
area = circumradius² * number of sides * sin (360 / # of sides) / 2
area = 77² * 20 * sin (360 / 20) / 2
area = 77² * 20 * sin (18) / 2
area = 118,580 * 0.30902 / 2
area =
<span>
<span>
<span>
36,643.59
</span>
</span>
</span>
/ 2
area =
18,321.8 square millimeters
Answer:
Step-by-step explanation:
0 and 1, both the values of the graphs of the functions are equal at both 0 and 1
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