A triangle with vertices at (x1, y1), (x2, y2), and (x3, y3) has area equal to the absolute value of D, where 
. Use this information to solve the problem.Use D to find the area of the triangle shown.
A. 31.25
B. 31.5
C. 30.0
D. 29.75
Answer: C
Mathematics
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B. 5 
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