ABCD is a quadrilateral . aline through D parallel AC meets BC produced at E. prove that ar(ABE)=arquad.(ABCD)
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Triangle ADC and triangle AEC r on same base and same parallel so there area r equal. -1
Triangle ADC + triangle ABC -2
from 1 and 2
Area of triangle ABE = area of quadri.ABCD
Triangle ADC + triangle ABC -2
from 1 and 2
Area of triangle ABE = area of quadri.ABCD
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