Sabc/Skmn = 5/7.
Объяснение:
Sabc = (1/2)·5·3·SinA
Skmn = (1/2)·3·7·SinK
∠A = ∠K => SinA = SinK.
Sabc/Skmn = (5·3)/(3·7) = 5/7.
Sabc/Skmn = 5/7.
Объяснение:
Sabc = (1/2)·5·3·SinA
Skmn = (1/2)·3·7·SinK
∠A = ∠K => SinA = SinK.
Sabc/Skmn = (5·3)/(3·7) = 5/7.