Jawabanmu

2014-06-17T00:16:14+07:00
Pjg TE=TF=TG=TH= akar {12^2+(5V2)^2}
= akar 144+50= akar 194=13,9cm
jd pjg kerangka : (4*10)+(4*13,9)=40+55,6=95,6 cm