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Problem 84: (2024 AMC 12b, 15)
A triangle in the coordinate plane has vertices $A(\log_21,\log_22)$, $B(\log_23,\log_24)$, and $C(\log_27,\log_28)$. What is the area of $\triangle ABC$? $\textbf{(A) }\log_2\frac{\sqrt3}7\qquad$ $ \textbf{(B) }\log_2\frac3{\sqrt7}\qquad$ $ \textbf{(C) }\log_2\frac7{\sqrt3}\qquad$ $ \textbf{(D) }\log_2\frac{11}{\sqrt7}\qquad$ $ \textbf{(E) }\log_2\frac{11}{\sqrt3}\qquad$
Solution
Exercise 84: Solution
A triangle in the coordinate plane has vertices $A(\log_31,\log_33)$, $B(\log_32,\log_39)$, and $C(\log_35,\log_3{27})$. What is the area of $\triangle ABC$?
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