Question

Two angles measure (30° - a) and (125° + 2a). If each one is the supplement of the other,
​

Answer 1

=> 30° - a + 125° + 2a = 180°

=> 155° + a = 180°

=> a = 25°

Answer 2

Answer:

Sum of supplementary angles is 180  

∘

 

∴(30−a)  

∘

+(125+2a)  

∘

=180  

∘

 

⇒a+155  

∘

=180  

∘

 

⇒a=180  

∘

−155  

∘

=25  

∘

Step-by-step explanation:

please mark this answer as a brainliest.