<em>Answer:</em>
<h3>The answer is 201 in²</h3>
<em>Explanation:</em>
Use the formula <u>Area = pi * r²</u>
<em>(Radius is half the diameter.)</em>
If a right circular cone intersects a plane that runs parallel to the edge of the cone, the resulting curve will be a <u>parabola</u>.
A parabola is curved from one end and open from other end, therefore it would fit the best.
Hope I could help! :)
#1 is 12x² -15x
#2 is fx-9x