Răspunsuri

2014-05-06T17:04:45+03:00
Tg B = Ac supra Ab
Ac : 5= 2,4
AC= 5 x 2,4
AC= 12 cm
BC=√AB²+AC²
BC=√5²+12²
BC=√25+144
BC=√169
BC= 13 cm

sin B = AC supra BC 12 supra 13
Daaaaaaaaa De unde ai luat radicalul??
Si in al 5 lea rand si Ac e sub radical?