please tell this today is my math preboard exam icse urgent.I will mark it brainlist
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Step-by-step explanation:
construction:
join AD and BC
To prove: AP × PB = CP × PD
Proof :
In triangle APD and triangle BPC
angle PAD = angle PCB. { angle in the same segment...}.
similarly, angle ADP = PBC
Triangle APD ~ triangle BPC { by AA postulate }
AP/CP = PD/PB { corresponding sides of similar triangles }
= AP × PB = CP × PD
proved...
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