Răspuns :

Loredanaschneidid

MN=AB+CD/2 =>AB+CD=2MN=2•27=54 (cm)

EF=CD-AB/2 => CD-AB=2EF=2•8=16 (cm)

AB+CD=54

CD-AB=16 => CD=AB+16

AB+AB+16=54

2AB=54-16

2AB=38

AB=38:2

AB=19 (cm)

CD=AB+16=19+16=35 (cm)

Vezi imaginea Loredanaschneid

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