mikaylaraenp5jvhu
mikaylaraenp5jvhu
28-05-2018
Mathematics
contestada
what is QR? thanks in advance!
Respuesta :
gmany
gmany
28-05-2018
Use trigonometric function:
[tex]\sin51^o=\dfrac{|QR|}{17}\\\\\sin51^o\approx0.7771\\\\\dfrac{|QR|}{17}=0.7771\ \ \ \ |\cdot17\\\\|QR|=13.2107\to|QR|\approx13.2\ cm[/tex]
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