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wolf1728
The angle between the 35 and 60 degree angles equals:180 -35 -60 = 85 degreesThis makes the angle next to the "x" angle = 5 degrees.So, angle "x" equals 180 -5 = 175 degrees.




caylus
Hi,
The angle of 60° is an outside angle of a triangle (equal the sum of the others angles of the triangle : in french un angle extérieur d'un triangle)

If x is inside the triangle:
60°=35°+x==>x=25°

If x is outside the triangle:
x=180°-25°=155°


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