Question

Find the areas of the parallelograms whose vertices are given in Exercises 35–40.

35. A(1, 0), B(0, 1), C(-1, 0), D(0, -1)

36. A(0, 0), B(7, 3), C(9, 8), D(2, 5)

37. A(-1, 2), B(2, 0), C(7, 1), D(4, 3)

38. A(-6, 0), B(1, -4), C(3, 1), D(-4, 5)

39. A(0, 0, 0), B(3, 2, 4), C(5, 1, 4), D(2, -1, 0)

40. A(1, 0, -1), B(1, 7, 2), C(2, 4, -1), D(0, 3, 2)

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