Question

two angles measure 45 degree + 3 a and 125 degree -2a if each angle is supplement of the other then calculate the value of a​

Answer 1

Answer:

Sum of supplementary angles is 180

∘

∴(30−a)

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+(125+2a)

∘

=180

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⇒a+155

∘

=180

∘

⇒a=180

∘

−155

∘

=25

Answer 2

Step-by-step explanation:

45° + 3a and 125° - 2a are supplementary angles so

45° + 3a + 125° - 2a = 180°

170° + a = 180°

a = 180 - 170

a = 10°

45° + 3×10 = 45 + 30 = 75°

125° - 2 × 10 = 125 - 20 = 115°