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In figure ABC and DBC are two triangles...

In figure ABC and DBC are two triangles on the same base BC. If AD intersects BC at O, show that `(a r(A B C))/(a r(D B C))=(A O)/(D O)`.

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`triangleABC` and `triangleDBC` are two triangles on the same base `BC`. If `AD` intersects `BC` at `O`.
To Prove:
`(Ar(ΔABC))/(Ar(ΔDBC))= (AO)/(DO)`
Construction: Drawn `AP⊥BC `and `DM⊥BC`. ...
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