show that a median of a triangle divides it into two triangle of equal areas
Answers
answer :- Let ABC be a triangle and Let AD be one of its medians.
Let ABC be a triangle and Let AD be one of its medians.In △ABD and △ADC the vertex is common and these bases BD and DC are equal.
Let ABC be a triangle and Let AD be one of its medians.In △ABD and △ADC the vertex is common and these bases BD and DC are equal.Draw AE⊥BC.
Let ABC be a triangle and Let AD be one of its medians.In △ABD and △ADC the vertex is common and these bases BD and DC are equal.Draw AE⊥BC.Now area(△ABD)= 1/2 ×base×altitude of△ADB
×base×altitude of△ADB=
but DC and AE is the base and altitude of △ACD
= area△ACD
area△ACD⇒area(△ABD) = area(△ACD)
area(△ACD)Hence the median of a triangle divides it into two triangles of equal areas.
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