Quadrilateral abcd has coordinates (3, 1), (4, 4), (7, 5), (6, 2). quadrilateral abcd is a answer a. square because its length and width are both square root of 10 units and adjacent sides are perpendicular b. rhombus because its length and width are both square root of 10 units and adjacent sides are not perpendicular c. rectangle because its length is two times the square root of 10 units, its width is square root of 10 units, and adjacent sides are perpendicular d. trapezoid because it has only one pair of parallel sides