The area of the parallelogram is: A = b * h Where, b: base h: height Substituting we have: A = (4) * (6) A = 24 For 15 parallelograms we have: At = 15 * A At = 15 * 24 At = 360 in ^ 2 Answer: The total area of the parallelogram-shaped pieces in the quilt is: B. 360 in ^ 2