Răspunsuri

2014-04-27T16:20:25+03:00
A=18 cm patrati
A= cateta ^2 / 2=18=> cateta^2=36=>  cateta=6
AD=BC/2
A=BC*AD= BC^2 /4=> BC=6 rad2
P=6+6+6rad2= 6(2+rad2)