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(iii)
A+B+C = 180°
=> 25°+x°+30° = 180°
=> x°=180°-55°
=125°
[This might be the ans]
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Answer:
i =67'
iii=125'
Step-by-step explanation:
i=because of the property of external triangle that is remote interior angles.
123=56+x
x=123-56
x=67'
iii.becaus the sum of all angles of triangle is 180'
180=25+30+x
180=55+x
x=180-55
x=125'
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