Question

do it fast it's urgent​

Answer 1

Answer:

40 +4 X +3 X =180 degree

40 + 7 X= 180

7 X= ,180-40

7 X= 140

X = 140/7

x = 20 degree

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

See above pic for explanation

hope it helps you