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Can someone please help me.-example-1

1 Answer

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Answer:

x = 7.2

Explanation:

the segment DA is an angle bisector and divides the opposite side from the bisected angle into segments that are proportional to the other two sides , that is


(BD)/(CD) =
(AB)/(AC) ( substitute values )


(x)/(12) =
(12)/(20) ( cross- multiply )

20x = 12 × 12 = 144 ( divide both sides by 20 )

x = 7.2

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