please answer this question with the correct answer.of Ans is crct will make u brainiest...
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Answer:
X=65
Step-by-step explanation:
110 + b = 180 (straight line)
110-180= angle b
=70 degree.
120+a =180 (straight line)
180- 120=a
=60 degree
angle c = angle b + ang a -180 ( triangle property)
70+60 -180
=50 degree
2x + 50 = 180 (straight line)
2x= 180-50
2x=130
x=130/2
=65
x = 65
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Answer:
65 degree
Step-by-step explanation:
Let the sides of the triangle be x, y, z
exterior angle = sum of opposite angles
2x = x + y
110 = y + z
120 = z + x
x+ y + y + z + z + x = 2x + 110 + 120
2 (x + y + z) = 2x + 110 + 120
x + y + z = 180 degree by triangle sum property....
2 (180) = 2x + 110 + 120
360 = 2x + 110 + 120
2x + 110 + 120 = 360
2x + 230 = 360
2x = 360 - 230
2x = 130
x = 130 / 2
x = 65
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