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1. ABCD is a parallelogram. Points P and Q divides BC in three equal parts. Prove that

ar(APQ) = ar( DPQ) = 1/6 ar (ABCD).
2. traingles DAC and BAC are on same base AC. If vertex B and D are on opposite side of AC such that area of traingle BAC . Prove that OD=OB.
3. AB is a diametre of the circle whose centre is O. If angle ADC = 120 , calculate the angle BAC.

Please its urgent........

arent three questions in one question too long?
hmmm seriously its too long
ya but interesting


1)I could only get first answer others trying
1 4 1
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