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ANSWER PLS! Dont just respond for the points pls

ANSWER PLS! Dont just respond for the points pls-example-1
User Brad Green
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The answer to the question in the photo is 21
User Aa Yy
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Answer:

18

Explanation:

Intersecting Secant-Tangent Theorem

The square of the tangent is equal to the product of the external secant segment and the secant.

Given:

  • tangent = AE = 12
  • external secant segment = EC = 8
  • secant = ED = 18 + x

AE² = EC · ED

⇒ 12² = 8(18 + x)

⇒ 144 = 144 + 8x

⇒ 0 = 8x

⇒ x = 0

ED = 18 + x

= 18 + 0

= 18

User Mkkekkonen
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