S = 1/2ab * simc
S = 1/2ah
S = 1/2bcsimA
sinc = h/b
1/2absimc = 1/2bcsinA
a/simA = b/simB = c/simC = 2R
S = absimc
h = b * simc
S = 1/2absimc
a/sinA = c/sinC

ա) Ab = 6√8սմ
AC = 4սմ
∡A = 60^o
S = 1/2absinc
S = 1/2 * 6√8 * 4 * √3/2 = 6√24 = 12√6սմ²

բ) BC = 3սմ
AB = 18√2սմ
∡B = 45^o
S = 1/2absinc
S = 1/2 * 18√2 * 3 * √2/2 = 27սմ²