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avatar+149 

Let TU and VW be chords of a circle, which intersect at S, as shown. If ST=3,TU=15 , and VW=3, then find SW .

 

I tried using power of a point and I got 18 but it was not correct fsr... .-. 

 

Not Available

 Oct 12, 2020
 #1
avatar+240 
+2

ST * SU = SV * SW           solve for SV using quadratic formulasmiley

 Oct 12, 2020
 #2
avatar+240 
+1

Let SV be  x

 

x (x + 3) = 3 * 18

 

x2 + 3x - 54 = 0       (solve with the quadratic formula)

 

x = 6

 

SW = 9

jugoslav  Oct 12, 2020
edited by jugoslav  Oct 12, 2020

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