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D is on side AC of Triangle ABC. We know [ABC] = 120, AD = 8, DC = 3. What is [ABD]?

 May 13, 2021
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D is on side AC of Triangle ABC. We know [ABC] = 120, AD = 8, DC = 3. What is [ABD]?

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AC = 11       [ABC] = 120      AD = 8

 

AB = 240 / 11 = 21 9/11

 

[ABD] = 1/2(8 * 21 9/11) = 87 3/11

 May 14, 2021

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