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If angle BAC = angle DBC, find AD + AB.

 

 Jan 3, 2021

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It's 12, because triangle ABC is larger than triangle BDC by a scale factor of 2. The triangles are similar. Therefore, AC is corresponding to BC. AC is 8 units, are AD is 8 - 2 = 6 units. AB is corresponding to BD, and 3 * 2 = 6 units. 6 + 6 = 12 units.

 Jan 3, 2021
 #1
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+1
Best Answer

It's 12, because triangle ABC is larger than triangle BDC by a scale factor of 2. The triangles are similar. Therefore, AC is corresponding to BC. AC is 8 units, are AD is 8 - 2 = 6 units. AB is corresponding to BD, and 3 * 2 = 6 units. 6 + 6 = 12 units.

Guest Jan 3, 2021

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