Lukejohn
Lukejohn
30.09.2019 • 
Mathematics

Quadrilateral abcd is inscribed in a circle. m a is 64º, m_bis (6x + 4)º, and m_cis (9x-1)º. what is m_d?
ο
ο α.
649
ο
ο β.
82°
ο
ο c.
90°
ο
ο d.
980
ο
ο ε.
116°
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