Program trapez;var B1,b2,l,d,h2:Real;beginrepeat write('Baza mare=');Readln(B1);until (b1>0)and(B1<1000);repeat write('Baza mica=');Readln(B2);until (b2>0)and(b2<1000)and(b2<b1);repeat write('Lungimea laturilor oblice');Readln(l);until (l>0)and(l<1000)and(l>((b1-b2)/2));h2:=l*l-(((B1-B2)/2)*((b1-b2)/2));d:=sqrt(((b1-b2)/2+b2)*((b1-b2)/2+b2)+h2);{}writeln('D=',d);readln;end.