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Va rooogg!!Urgeent !!​

Va RoooggUrgeent class=

Răspuns :

a) P:2=7,5cm

P=7,5x2=15 cm

b) P=AB+BC+CA=80mm+100mm+50mm=230mm=23 cm

c) AB=16cm

BC=3x16:4=48:4=12 cm

AC=(AB+BC):2=16+12=28 cm

P=AB+BC+AC=16+12+28=56 cm