Answer:
A = 12.5
Step-by-step explanation:
A =
A=
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Answers & Comments
Answer:
A = 12.5
Step-by-step explanation:
A =![\frac{1}{2} [ x_1 (y_3 - y_2) + x_2(y_1 - y_3) + x_3(y_2- y_1)] \frac{1}{2} [ x_1 (y_3 - y_2) + x_2(y_1 - y_3) + x_3(y_2- y_1)]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%5B%20x_1%20%28y_3%20-%20y_2%29%20%2B%20x_2%28y_1%20-%20y_3%29%20%2B%20x_3%28y_2-%20y_1%29%5D)
A=