Find the value of x in the following figure: (6x-40)° (5x+9)° (3x+5)°
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We know that The sum of three angles of triangle is 180 degree .
Then,
(6x-40)+(5x+9)+(3x+15)=180
6x-40+5x+9+3x+15=180
14x-16=180
14x=180+16
14x=196
x=296/14
x=14 degree ans
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