Ответ:
AD=DB
AD=AB*Cos 35=8см*0,8191=6,5528
AB=AD+DB=6,5528+6,5528=13,1056
CD=AB*sin 35=8см *0,5736=4,5888
S=1/2ah
S=1/2*CD*AB=1/2*13,1056*4,5888=30,0695
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Ответ:
AD=DB
AD=AB*Cos 35=8см*0,8191=6,5528
AB=AD+DB=6,5528+6,5528=13,1056
CD=AB*sin 35=8см *0,5736=4,5888
S=1/2ah
S=1/2*CD*AB=1/2*13,1056*4,5888=30,0695