Mathematics, 16.02.2021 06:40 tonya3498
Find the area of a triangle with vertices A(3, 1), B(2, -1), and C(-2, 1). Leave your answer in decimal form, rounded to the nearest hundredth.
Answers: 3
![A=\frac{1}{2} *|\left[\begin{array}{ccc}{X_A-X_C}&Y_A-Y_C\\X_B-X_C&Y_B-Y_C\\\end{array}\right]|;](/tpl/images/1121/4437/df3ad.png)
![A=\frac{1}{2}*|\left[\begin{array}{ccc}5&0\\4&-2\\\end{array}\right]|=\frac{1}{2}*10=5.](/tpl/images/1121/4437/94b00.png)
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Find the area of a triangle with vertices A(3, 1), B(2, -1), and C(-2, 1). Leave your answer in deci...
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