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find the value of x and the measure of KI

patulong nmn with solution ​


Find The Value Of X And The Measure Of KIpatulong Nmn With Solution class=

Sagot :

UK2019

✏️POWER THEOREM

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[tex]\underline{\mathbb{PROBLEM:}}[/tex]

  • Find the value of x and the measure of segment KI.

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[tex]\underline{\mathbb{ANSWER:}}[/tex]

[tex]\qquad\LARGE\rm» \:\: \green{x = 10}[/tex]

[tex]\qquad\LARGE\rm» \:\: \green{m\overline{KI} = 18}[/tex]

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[tex]\underline{\mathbb{SOLUTION:}}[/tex]

- Solve for x by applying the Tangent-Secant Power Theorem.

  • [tex] \rm (KL)^2 = (KI)(KJ) [/tex]

  • [tex] \rm (KL)^2 = (JI + KJ)(KJ) [/tex]

- Substitute the given.

  • [tex] 12^2 = (x + 8)(8) [/tex]

  • [tex] 144 = (x + 8)(8) [/tex]

  • [tex] 144 = 8x + 64 [/tex]

  • [tex] 80 = 8x [/tex]

  • [tex] \frac{80}8= \frac{\cancel8x}{\cancel8} \\ [/tex]

  • [tex] 10 = x [/tex]

- Thus, the value of x is 10, find the length of segment KI

  • [tex] {\rm KI} = x + 8 [/tex]

  • [tex] {\rm KI} = 10 + 8 [/tex]

  • [tex] {\rm KI} = 18 [/tex]

[tex]\therefore[/tex] The value of x is 10 while the length of the segment KI is 18.

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