Question

b) In figure, determine the value of x.
3x
3x
150°​

Answer 1

Answer:

3x+3x+x+150=360

10x=360-150

10x=210

x=210/10

x=21

I hope you understand

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Answer 2

Answer:

x=180-150=30 (150⁰+x=180⁰{lenear pair})