Solve using the geometric theorem

Ian Varley asked Jul 10, 2023

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25 votes

Ian Varley asked Jul 10, 2023

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30 votes

Answer:

Explanation:

assuming that the complete question is:

If AD = 3 and DB = 9 find AC.

(AC)^2 = AD * AB

y2 = 3 * 12 ( AB = AD + DB ; AB = 3 + 9 =12)

y^2 = 36

y = ± 6

AC = 6 ( AC can not be negative , so reject -6 )

Yunyi Hu answered Jul 15, 2023

2.8k points

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