Respuesta :

notice if we know the side SV = 9, then... wait a second!!!!  SV is the radius of the circle, but but but, TS is also a radius, but but but, SU is also a radius.

TU = TS + SU

TU = 9 + 9.

recall, the radius is the same length no matter how you slant it.

gmany

The radius [tex]\overline{SU}=\overline{ST}=\overline{SV}[/tex]

The diameter: [tex]\overline{TU}[/tex]

The chord [tex]\overline{WX}[/tex] and diameter is a chord.

[tex]\overline{TU}=2\overline{SV}[/tex] therefore if [tex]|\overline{SV}|=9[/tex]

then [tex]|\overline{TU}|=2\cdot9=18[/tex]

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