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Sample edHelper.com - Matrices Worksheet

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Matrices
Use determinants to calculate the area. Show your work.

 1 Calculate the area of the triangle with the following points:(-4, 1), (-1, -4), (-1, 3)
 2 Calculate the area of the triangle with the following points:(-3, -4), (-6, -7), (-1, -8)
 3 Calculate the area of the triangle with the following points:(7, 1), (2, 2), (-1, -3)
 4 Calculate the area of the triangle with the following points:(0, -1), (-3, 0), (-4, -2)
 5 Calculate the area of the triangle with the following points:(-8, -10), (-3, -11), (-5, -5)
 6 Calculate the area of the triangle with the following points:(1, -8), (1, -4), (-1, -7)
 7 Calculate the area of the triangle with the following points:(0, -3), (6, 0), (1, 0)
 8 Calculate the area of the triangle with the following points:(-4, 3), (-9, -2), (-6, 0)
 9 Calculate the area of the triangle with the following points:(-4, -5), (-5, -9), (0, 2)
 10 Calculate the area of the triangle with the following points:(0, -2), (5, 8), (-3, 0)
 11 Calculate the area of the triangle with the following points:(2, -5), (-1, -9), (2, -9)
 12 Calculate the area of the triangle with the following points:(5, 0), (2, -5), (9, 4)

Sample
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