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Let XY be a tangent to a circle, and let be a XBA secant of the circle, as shown below. If AX = 16 and XY = 8, then what is AB?

 

 Jan 16, 2021

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 #2
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Let XY be a tangent to a circle, and let be an XBA secant of the circle, as shown below. If AX = 16 and XY = 8, then what is AB?

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

XY2 = XB * AX

 

82 = XB * 16

 

XB = 4            AB = 12

 Jan 16, 2021
 #1
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I think the answer is 9.6

 Jan 16, 2021
 #2
avatar+1028 
+2
Best Answer

Let XY be a tangent to a circle, and let be an XBA secant of the circle, as shown below. If AX = 16 and XY = 8, then what is AB?

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

XY2 = XB * AX

 

82 = XB * 16

 

XB = 4            AB = 12

jugoslav Jan 16, 2021

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