Question

In the figure, if a: b = 1: 4 then the values of 'b' and 'a'.plzz answer this it is urgent.

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Answer 1

Answer:

a = 36°    and    b = 144°

Step-by-step explanation:

a:b = 1:4

Also, we know that angle made by a straight line is 180°

⇒   a + b = 180°

Now, Put b = 4a

⇒   a + 4a = 180°  

⇒      5a = 180°        ⇒         a = 36°

⇒ b = 144°

Hope you understand it !!!!!!!!!

Answer 2

Answer:

Answer:

a = 36°    and    b = 144°

Step-by-step explanation:

a:b = 1:4

Also, we know that angle made by a straight line is 180°

⇒   a + b = 180°

Now, Put b = 4a

⇒   a + 4a = 180°  

⇒      5a = 180°        ⇒         a = 36°

⇒ b = 144°