ca2twischLeN ca2twischLeN

11-11-2016
Mathematics

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The m_ACD = (4x + 4)Á and m_ABD = (6x - 14)Á. Find m_ACD.

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nobillionaireNobley nobillionaireNobley

18-11-2016

From the figure, m<ACD = m<ABD
4x + 4 = 6x - 14
6x - 4x = 4 + 14
2x = 18
x = 9

Therefore, m<ACD = 4(9) + 4 = 40°

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