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Plssssssssssssssssssssssssssssssssssssssssssssss help

Plssssssssssssssssssssssssssssssssssssssssssssss help-example-1
User Kuka
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1 Answer

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Answer:

Explanation:

AB=AD so <ABD=<ADB=72

<BDC=180-<ABD=180-72=108 ( cause A,D,C are on the same line)

<BAC=180-(<ABD+<ADB)=180- (72+72)=180-144=36

so <BCA=<BAC=36 cause AB=BC ( trg BAC is isosceles)

<BCD=<BCA=36 ( cause A,D,C are on the same line)

<CBD=180-(<BDC+<BCD)=180- (108+36)=180-144=36

so <CBD=<BCD=36 so the trg BCD is isosceles

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