Math, asked by negibro1088, 8 months ago

please answer correctly

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Answered by Abignya

7

Step-by-step explanation:

sum of all angles in a triangle is 180

then 5a+2a+x=180
then7a=5a+x
x=2a
5a+2a+2a=180
9a=180
a=20
5a=100
2a=40=x

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