Question 1106935
If this is drawn,the radius is the hypotenuse of a right triangle with base 9.5 (half the side length of 19) and angle with hypotenuse of 54 degrees, half of the internal angle.  cosine 54=9.5/x
x=9.5/cos 54=16.16 
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The area is pi*(16.16)^2, which can be estimated as 250*3 1/4 or about 815.
It is 820.65, so 821 is the correct answer.