lenngr04 lenngr04

03-01-2020
Mathematics

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A quadilateral ABCD is drawn to circumcribe a circle . prove that AB+CD=AD+BC

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marissaguel01 marissaguel01

03-01-2020

Answer:

Helllllp

Step-by-step explanation:

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kenlingdad kenlingdad

03-01-2020

Answer:

detail in steps

Step-by-step explanation:

as illustrated

AB = AP + BP

CD = CR + DR

AD = AS + DS

BC = BQ + CQ

while AP = AS BP = BQ CQ = CR DR = DS

AB + CD = AP + BP + CR + DR

AD+BC = AS + DS + BQ + CQ

∴ AB+CD=AD+BC

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