Question

Ignore the problem above #3

Answer 1

∠a:

m∠a + 50 = 180 (because they are supplementary angles)

m∠a + 50 (-50) = 180 (-50)

m∠a = 180 - 50

m∠a = 130°

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m∠d + 65 + 50 = 180

m∠d + 115 = 180

m∠d + 115 (-115) = 180 (-115)

m∠d = 65°

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hope this helps