104- What is the area of a triangle with sides $7, 9, 12$? (1) $15\sqrt{2}$ (2) $14\sqrt{3}$ (3) $12\sqrt{5}$ (4) $14\sqrt{5}$
\textbf{104-} What is the area of a triangle with sides $7, 9, 12$?
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(1) $15\sqrt{2}$ \hfill (2) $14\sqrt{3}$ \hfill (3) $12\sqrt{5}$ \hfill (4) $14\sqrt{5}$
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