Răspunsuri

Cel mai inteligent răspuns!
2014-05-11T20:40:46+03:00
ΔABC, A =90⁰
BC = 16
AB = 8
------------------
AC = ?
B = ?
C = ?
-----------------
AC = √(16²-8²) = √(8²*2² - 8²) = √8²*3 = 8√3
cosB = AB/BC = 8/16 = 1/2 => B = arccos1/2 = 60⁰
C = 90⁰ - 60⁰ = 30⁰

2 5 2