Bardzo proszę o pomoc.Wynagrodzę za pomoc :)  2 zadanka z geometrii w załącznikach.

zał. 1 a) sin alfa = 2/3 beta =( 180 - 45 - 90 ) st = 45 st cos 45 st = p(2)/2 ------------------------------- b)  cos beta = 3/4  sin alfa = 3/4 c) a^2 = 2^2 +1^2 = 4 + 1 = 5 a = p(5) sin alfa = 1 /p(5) = p(5) / 5 cos beta = 1 / p(5) = p95)/5 d) h^2 = 4^2 - 1^2 = 16 -1 = 15 h = p(15) sin alfa = h/4 = p(15) /4 x^2 + h^2 = 5^2 x^2 = 5^2 - h^2 x^2 = 25 - 15 = 10 x = p(10) cos beta = x/5 = p(10)/5 ----------------------------------------- zał. 2 tg alfa = 1/ 3 a/5 = tg alfa a/5 = 1/3 3a = 5*1 = 5 a = 5/3 ======= ctg beta = 1/4  b/10 = ctg beta b/10 = 1/4 4b = 1*10 = 10 b = 10/4 = 2,5 ================ sin gamma = 2/3 3/c = sin gamma 3/c = 2/3 2c = 3*3 = 9 c = 9/2 = 4,5 ============== cos delta = 4/5 d/ 7 = cos delta d/ 7 = 4/5 5 d = 4*7 = 28 d = 28/5 = 5,6 ===============