ajutati.ma va roooog e urgent
![Ajutatima Va Roooog E Urgent class=](https://ro-static.z-dn.net/files/d0c/70402924b7fb3cd218ac42de13c1e804.jpg)
din trapezul drept O1T1T2O2,
formam /_\(triunghi) O1MO2 drept cu M perpendiculare pe T1O1 O1M=O1T1-O2T2=r1-r2=20cm-8cm=12cm
O2M=T1T2
O1O2=O1M+O2M2=16+12=256+144=400
O1O2=400cm=20cm
coroana??
crede.ma ma dor mainile la cat am scris