Respuesta :

caylus
Hello,

a²=b²+c²-2bc*cos A
==>a²=13²+6²-2*13*6*cos 50°=104.7251...
==>a=10.2335...

sin C/c=sin A/a
==>sin C=qin 50°-6/10.2335...=0.449137...
==>angle C=26.688394...°

angle B==180°-50°-26.688394...°=103.311610...°

Answer:

a= 10.23, C= 26.3, B= 103.7

Step-by-step explanation:

a²=b²+c²-2bc*cos A

==>a²=13²+6²-2*13*6*cos 50°=104.7251...

==>a=10.2335...

sin C/c=sin A/a

==>sin C=qin 50°-6/10.2335...=0.449137...

==>angle C=26.688394...°

angle B==180°-50°-26.688394...°=103.311610...°

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