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X= ?? geometry ??? And how ????

X= ?? geometry ??? And how ????-example-1
User NiCk CAMel
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1 Answer

3 votes

Using the equations for tangent and secant lines:

Let the unknown length of the line inside the circle = y

6^2 = 3 x (y+3)

Simplify:

36 = 3y+9

Subtract 9 from both sides:

27 =3y

Divide both sides by 3:

Y = 9

Now add to get x:

X = 9 + 3 = 12

X = 12

User Vernel
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