∵2asinb=√3b ∴ a/b=√3/(2sinB)∵a=b ∴√3/(2sinB)=1 sinB =√3/2 sinA=√3/2 ∵ b c=8 ∴ S△ABC=1/2 bcsinA=1/2*8*√3/2=2√3
根号3/4 *b
