Question

19. Find the value of a + b in the given figure.​

Answer 1

Answer:

+x+9=180∘ (sum of angles at a point on a line)

⟹2x+25x−5+x+9=180∘

So, a+b=21x+5(2x−1)

=2x+25x−5

Answer 2

Answer:

a) 180° b)130°

Step-by-step explanation:

as it is straight line therefore a=180°

b+50= 180

b=130

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