Answer:
98
Step-by-step explanation:
angles 1 and 2 are congruent, the lines in each side of the shape prove this.
another way to solve if you are not sure is to subtract all of the numbers from 360. all quadrilaterals equal 360 degrees, so if you subtract each of the three angles from 360, you will be left with the last angle.
360-120-44-98=98
Cone Volume = PI * radius^2*height / 3
Cone Volume = 3.14159265*2*2*48 / 3
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Cone Volume = 201.0619296
And 201.06 is NOT one of the choices.
Here is a cone calculator to check it.
http://www.1728.org/volcone.htm
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