AJUTOR dau 20 puncte coroana 5stele
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Răspuns:
25cm
Explicație pas cu pas:
MD/MD+AD =CD/AB
MD+10=12/36
36MD=12*(MD+10)
36MD=12MD+120
36MD-12MD=120
24MD=120
MD=120:24
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MD=5 cm
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MC/MC+16=12/36
36MC=12(MC+16)
36MC-12MC=12*16
24MC=192
MC=192:24
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MC= 8cm
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P=5+8+12
P=25 cm