Question

please solve this question step by step
it's very urgent ​

Answer 1

Step-by-step explanation:

by exterior angle theorem

80=x+40

x=80-40

x=40

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Answer 2

Answer:

40

Step-by-step explanation:

let the 2nd angle be y.

then for finding y,

y+80=180 (linear pair of a angle)

y=180-80

y=100

now for finding x,

ACCORDING TO THE QUESTION

x+40+100=180 (angle sum property)

x+140=180

x=180-140

x=40

Hence the required angle is 40 degree

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