Triangles on the Same Base and between the Same Parallels
In a triangle...
Question
In a triangle ABC,the medians BE and CF intersect at G.Prove that ar(△BCG)=ar(AFGE).
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Solution
ANSWER: Figure CF is median of △ABC. ⇒ar(△BCF) = 1/2(△ABC) .....(1) Similarly, BE is the median of △ABC, ⇒ar(△ABE) = 1/2(△ABC) .....(2) From (1) and (2) we have ar(△BCF) = ar(△ABE) ⇒ar(△BCF) - ar(△BFG) = ar(△ABE) - ar(△BFG) ⇒ar(∆BCG) = ar(AFGE)