find x form the adjoinig figure .
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Given:-
- A straight line with some measurements of angles.
To Find:-
- The value of x .
Answer:-
Here we can see that all are the angles of a straight line . And we know that the measure of angle of a straight line is 180° .
So , on adding these three given angles we will get 180° .
Atq ,
➥ ( x +10 )° + 3x° + ( x + 20 )° = 180° .
➥ x + 10 + 3x + x + 20 = 180.
➥ 5x + 30 = 180.
➥ 5 ( x + 6 ) = 180 .
➥x + 6 = 180/5 .
➥ x + 6 = 36.
➥ x = 36 - 6.
➤ x = 30.
Hence the value of x is 30° .
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