-1.5 1.5 2 Write down the area of this slice. (c) (2 points) Using your horizontal slices in part (b), compute now the area of the ellipse. (Hint: You may wish to use trig substitutions). In this question, we are going to use slices to calculate both the circumference AND the area of this shape. (a) (4 points) By dividing the ellipse into four equal parts, use the arc length formula to compute the circumference of the ellipse. (Hint: You may Wish to use trig substitutions)