# Triangle area!!

Geometry Level pending

Find the area of the above triangle ِ$$ABC$$ in terms of $$n,m, r,$$ and $$s$$.

I- $$\large {\frac{ | ns - rm| }{2} }$$

II- $$\large {\frac{ rm - ns }{2}}$$

III- $$\large {\frac{ns - rm}{2}}$$

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