1&2.

label Mathematics
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Apr 12th, 2015

1  AB is tangent to C because  AB^2 + BC^2=AC^2

  12*12+9*9=15*15

144+81=225

225=225.....ANGLE  ABC=90, degrees


2 AB is not tangent to C this is not a right angled triangle.

Length of line AB (12) cannot be longer than line CB (9)

Apr 12th, 2015

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Apr 12th, 2015
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Apr 12th, 2015
Sep 23rd, 2017
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