Question

СРОЧНО ДАЮ 100 БАЛЛОВ!!! решите все 3 задания!

Answer 1

1) c = a : sin a = 5 : sin 45 = 7,1
b = c^2 - a^2 = b^2
b = 50,41 - 25 = √25,41 = 5
AD = (5 * 2) + 7 = 17
S = 7 + 17 : 2 * 5 = 60

2) a = 15 - (5 * 2) = 5
S = 5 + 15 : 2 * 5 = 50