Question

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Answer 1

Explicație pas cu pas:

ΔADE~ΔABC⇒AD/AB=AE/AC⇒6/30=5/AC⇒1/5=5/AC⇒AC=25(cm)

si DE/BC=AE/AC⇒4/BC=5/25⇒4/BC=1/5⇒BC=20(cm)

P=BC+AC+AB=20+25+30=75(cm)

Raspuns: B

Bafta!