Respuesta :

Hrishii

Answer:

8

Step-by-step explanation:

By intersecting tangent secant theorem:

[tex] {x}^{2} = 4(4 + 12) \\ \\ {x}^{2} = 4 \times 16 \\ \\ {x}^{2} = 64 \\ \\ x = \sqrt{64} \\ \\ x = 8[/tex]

Answer:

6.9

Step-by-step explanation:

If a secant segment and tangent segment are drawn to a circle from the same external point, the product of the length of the secant segment and its external part equals the square of the length of the tangent segment

x² = 4 * 12

x² = 48

Take the square root of both sides

x = 6.9282032303

Rounded

x = 6.9

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