find the value of x
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Answer:
The value of all angles in a triangle is 180°.
A + B + C = 180°
=> 70° + 30° + x° = 180°
=> 100° + x° = 180°
=> x° = 180° - 100°
=> x° = 80°
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Angle D = angle A = 30
( angle of same segment)
In triangle BDC
70+ 30+ x = 180 (angle sum property)
100 + x = 180
X = 180 - 100
X = 80
( angle of same segment)
In triangle BDC
70+ 30+ x = 180 (angle sum property)
100 + x = 180
X = 180 - 100
X = 80
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