Charity R.
asked • 03/04/21ZA and ZB are vertical angles. If m A = (3x + 13)° and m_B = (5x + 9)", then find the measure of ZA.
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1 Expert Answer
Vertical angles are equal. Equate their measures and solve for x:
3x + 13 = 5x + 9
4 = 2x
2 = x
m<A = 3x + 13 = 3*2 + 13 = 19
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Mark M.
Angles are identified by either one letter or three letters, never two. Check the data.03/04/21