Question

Q.Fig1)
Bisectors of angleB and angleD of quadrilateral ABCD meet CD and AB produced at P and Q respectively.
Prove:- angleP+angleQ=1by2(angle ABC+angle ADC)
Q.Fig2)
In a quadrilateral ABCD, AO and BO are bisectors of angleA and angle B respectively.
Prove:- angle AOB=1by2(angle C +angleD)
Q.Fig3)
In the given figure angleP+angle Q+angle R+angle S+angle T
Prove:- Sum of all angle of Pentagon is 540°
Please answer correctly​

Answer 1

Answer:

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